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Finding the Fourth Proportional to 86,161.50, 129,251.52 and 36,246.68

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Solution

The fourth proportional to 86,161.50, 129,251.52 and 36,246.68 is: 54,373.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,161.50 : 129,251.52 = 36,246.68 : x
  2. Step 2: Convert to fraction form
    86,161.50/129,251.52 = 36,246.68/x
  3. Step 3: Cross multiply
    86,161.50x = 129,251.52 × 36,246.68
  4. Step 4: Simplify right side
    86,161.50x = 4,684,937,838.70
  5. Step 5: Solve for x
    x = 4,684,937,838.70/86,161.50
  6. Step 6: Final answer
    x = 54,373.91

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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.