Home / 71,456.52-98,615.91-39,635.70

Finding the Fourth Proportional to 71,456.52, 98,615.91 and 39,635.70

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Solution

The fourth proportional to 71,456.52, 98,615.91 and 39,635.70 is: 54,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,456.52 : 98,615.91 = 39,635.70 : x
  2. Step 2: Convert to fraction form
    71,456.52/98,615.91 = 39,635.70/x
  3. Step 3: Cross multiply
    71,456.52x = 98,615.91 × 39,635.70
  4. Step 4: Simplify right side
    71,456.52x = 3,908,710,623.99
  5. Step 5: Solve for x
    x = 3,908,710,623.99/71,456.52
  6. Step 6: Final answer
    x = 54,700.55

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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.