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Finding the Fourth Proportional to 71,552.70, 98,790.84 and 63,974.88

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Solution

The fourth proportional to 71,552.70, 98,790.84 and 63,974.88 is: 88,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,552.70 : 98,790.84 = 63,974.88 : x
  2. Step 2: Convert to fraction form
    71,552.70/98,790.84 = 63,974.88/x
  3. Step 3: Cross multiply
    71,552.70x = 98,790.84 × 63,974.88
  4. Step 4: Simplify right side
    71,552.70x = 6,320,132,134.10
  5. Step 5: Solve for x
    x = 6,320,132,134.10/71,552.70
  6. Step 6: Final answer
    x = 88,328.35

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1.5x scale

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.