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Finding the Fourth Proportional to 86,446.25, 129,720.42 and 36,523.13

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Solution

The fourth proportional to 86,446.25, 129,720.42 and 36,523.13 is: 54,806.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,446.25 : 129,720.42 = 36,523.13 : x
  2. Step 2: Convert to fraction form
    86,446.25/129,720.42 = 36,523.13/x
  3. Step 3: Cross multiply
    86,446.25x = 129,720.42 × 36,523.13
  4. Step 4: Simplify right side
    86,446.25x = 4,737,795,763.31
  5. Step 5: Solve for x
    x = 4,737,795,763.31/86,446.25
  6. Step 6: Final answer
    x = 54,806.26

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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.