Home / 66,265.22-91,439.17-39,402.54

Finding the Fourth Proportional to 66,265.22, 91,439.17 and 39,402.54

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Solution

The fourth proportional to 66,265.22, 91,439.17 and 39,402.54 is: 54,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,265.22 : 91,439.17 = 39,402.54 : x
  2. Step 2: Convert to fraction form
    66,265.22/91,439.17 = 39,402.54/x
  3. Step 3: Cross multiply
    66,265.22x = 91,439.17 × 39,402.54
  4. Step 4: Simplify right side
    66,265.22x = 3,602,935,096.30
  5. Step 5: Solve for x
    x = 3,602,935,096.30/66,265.22
  6. Step 6: Final answer
    x = 54,371.44

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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.