Home / 71,306.48-98,403.72-39,475.92

Finding the Fourth Proportional to 71,306.48, 98,403.72 and 39,475.92

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Solution

The fourth proportional to 71,306.48, 98,403.72 and 39,475.92 is: 54,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,306.48 : 98,403.72 = 39,475.92 : x
  2. Step 2: Convert to fraction form
    71,306.48/98,403.72 = 39,475.92/x
  3. Step 3: Cross multiply
    71,306.48x = 98,403.72 × 39,475.92
  4. Step 4: Simplify right side
    71,306.48x = 3,884,577,378.42
  5. Step 5: Solve for x
    x = 3,884,577,378.42/71,306.48
  6. Step 6: Final answer
    x = 54,477.20

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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.