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Finding the Fourth Proportional to 71,356.56, 98,472.15 and 39,525.36

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Solution

The fourth proportional to 71,356.56, 98,472.15 and 39,525.36 is: 54,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,356.56 : 98,472.15 = 39,525.36 : x
  2. Step 2: Convert to fraction form
    71,356.56/98,472.15 = 39,525.36/x
  3. Step 3: Cross multiply
    71,356.56x = 98,472.15 × 39,525.36
  4. Step 4: Simplify right side
    71,356.56x = 3,892,147,178.72
  5. Step 5: Solve for x
    x = 3,892,147,178.72/71,356.56
  6. Step 6: Final answer
    x = 54,545.05

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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.