Home / 40,161.11-55,421.37-23,165.39

Finding the Fourth Proportional to 40,161.11, 55,421.37 and 23,165.39

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Solution

The fourth proportional to 40,161.11, 55,421.37 and 23,165.39 is: 31,967.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,161.11 : 55,421.37 = 23,165.39 : x
  2. Step 2: Convert to fraction form
    40,161.11/55,421.37 = 23,165.39/x
  3. Step 3: Cross multiply
    40,161.11x = 55,421.37 × 23,165.39
  4. Step 4: Simplify right side
    40,161.11x = 1,283,857,788.94
  5. Step 5: Solve for x
    x = 1,283,857,788.94/40,161.11
  6. Step 6: Final answer
    x = 31,967.69

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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.