Home / 71,436.18-107,060.28-39,861.11

Finding the Fourth Proportional to 71,436.18, 107,060.28 and 39,861.11

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Solution

The fourth proportional to 71,436.18, 107,060.28 and 39,861.11 is: 59,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,436.18 : 107,060.28 = 39,861.11 : x
  2. Step 2: Convert to fraction form
    71,436.18/107,060.28 = 39,861.11/x
  3. Step 3: Cross multiply
    71,436.18x = 107,060.28 × 39,861.11
  4. Step 4: Simplify right side
    71,436.18x = 4,267,541,940.10
  5. Step 5: Solve for x
    x = 4,267,541,940.10/71,436.18
  6. Step 6: Final answer
    x = 59,739.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.