Home / 71,231.18-98,294.04-39,397.56

Finding the Fourth Proportional to 71,231.18, 98,294.04 and 39,397.56

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Solution

The fourth proportional to 71,231.18, 98,294.04 and 39,397.56 is: 54,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,231.18 : 98,294.04 = 39,397.56 : x
  2. Step 2: Convert to fraction form
    71,231.18/98,294.04 = 39,397.56/x
  3. Step 3: Cross multiply
    71,231.18x = 98,294.04 × 39,397.56
  4. Step 4: Simplify right side
    71,231.18x = 3,872,545,338.54
  5. Step 5: Solve for x
    x = 3,872,545,338.54/71,231.18
  6. Step 6: Final answer
    x = 54,365.87

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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.