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Finding the Fourth Proportional to 89,178.85, 133,811.85 and 39,252.70

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Solution

The fourth proportional to 89,178.85, 133,811.85 and 39,252.70 is: 58,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,178.85 : 133,811.85 = 39,252.70 : x
  2. Step 2: Convert to fraction form
    89,178.85/133,811.85 = 39,252.70/x
  3. Step 3: Cross multiply
    89,178.85x = 133,811.85 × 39,252.70
  4. Step 4: Simplify right side
    89,178.85x = 5,252,476,404.50
  5. Step 5: Solve for x
    x = 5,252,476,404.50/89,178.85
  6. Step 6: Final answer
    x = 58,898.23

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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.