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Finding the Fourth Proportional to 86,438.92, 129,627.24 and 36,522.91

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Solution

The fourth proportional to 86,438.92, 129,627.24 and 36,522.91 is: 54,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,438.92 : 129,627.24 = 36,522.91 : x
  2. Step 2: Convert to fraction form
    86,438.92/129,627.24 = 36,522.91/x
  3. Step 3: Cross multiply
    86,438.92x = 129,627.24 × 36,522.91
  4. Step 4: Simplify right side
    86,438.92x = 4,734,363,315.99
  5. Step 5: Solve for x
    x = 4,734,363,315.99/86,438.92
  6. Step 6: Final answer
    x = 54,771.20

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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.