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Finding the Fourth Proportional to 63,086.90, 87,061.85 and 36,234.78

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Solution

The fourth proportional to 63,086.90, 87,061.85 and 36,234.78 is: 50,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,086.90 : 87,061.85 = 36,234.78 : x
  2. Step 2: Convert to fraction form
    63,086.90/87,061.85 = 36,234.78/x
  3. Step 3: Cross multiply
    63,086.90x = 87,061.85 × 36,234.78
  4. Step 4: Simplify right side
    63,086.90x = 3,154,666,799.97
  5. Step 5: Solve for x
    x = 3,154,666,799.97/63,086.90
  6. Step 6: Final answer
    x = 50,005.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.