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Finding the Fourth Proportional to 86,452.59, 129,678.90 and 23,272.86

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Solution

The fourth proportional to 86,452.59, 129,678.90 and 23,272.86 is: 34,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,452.59 : 129,678.90 = 23,272.86 : x
  2. Step 2: Convert to fraction form
    86,452.59/129,678.90 = 23,272.86/x
  3. Step 3: Cross multiply
    86,452.59x = 129,678.90 × 23,272.86
  4. Step 4: Simplify right side
    86,452.59x = 3,017,998,884.65
  5. Step 5: Solve for x
    x = 3,017,998,884.65/86,452.59
  6. Step 6: Final answer
    x = 34,909.29

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Similar ratio
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1.5x scale

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.