Home / 66,303.06-91,532.19-51,161.82

Finding the Fourth Proportional to 66,303.06, 91,532.19 and 51,161.82

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Solution

The fourth proportional to 66,303.06, 91,532.19 and 51,161.82 is: 70,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,303.06 : 91,532.19 = 51,161.82 : x
  2. Step 2: Convert to fraction form
    66,303.06/91,532.19 = 51,161.82/x
  3. Step 3: Cross multiply
    66,303.06x = 91,532.19 × 51,161.82
  4. Step 4: Simplify right side
    66,303.06x = 4,682,953,428.99
  5. Step 5: Solve for x
    x = 4,682,953,428.99/66,303.06
  6. Step 6: Final answer
    x = 70,629.52

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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.