Home / 40,161.69-55,429.11-23,162.76

Finding the Fourth Proportional to 40,161.69, 55,429.11 and 23,162.76

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Solution

The fourth proportional to 40,161.69, 55,429.11 and 23,162.76 is: 31,968.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,161.69 : 55,429.11 = 23,162.76 : x
  2. Step 2: Convert to fraction form
    40,161.69/55,429.11 = 23,162.76/x
  3. Step 3: Cross multiply
    40,161.69x = 55,429.11 × 23,162.76
  4. Step 4: Simplify right side
    40,161.69x = 1,283,891,171.94
  5. Step 5: Solve for x
    x = 1,283,891,171.94/40,161.69
  6. Step 6: Final answer
    x = 31,968.06

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Half scale
Find fourth proportional to 80,323.38, 110,858.22 and 46,325.52
Double scale
Find fourth proportional to 40,162.69, 55,430.49 and 23,163.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.