Home / 71,517.46-98,697.17-39,686.36

Finding the Fourth Proportional to 71,517.46, 98,697.17 and 39,686.36

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Solution

The fourth proportional to 71,517.46, 98,697.17 and 39,686.36 is: 54,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,517.46 : 98,697.17 = 39,686.36 : x
  2. Step 2: Convert to fraction form
    71,517.46/98,697.17 = 39,686.36/x
  3. Step 3: Cross multiply
    71,517.46x = 98,697.17 × 39,686.36
  4. Step 4: Simplify right side
    71,517.46x = 3,916,931,719.66
  5. Step 5: Solve for x
    x = 3,916,931,719.66/71,517.46
  6. Step 6: Final answer
    x = 54,768.89

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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.