Home / 80,856.87-121,234.41-24,678.29

Finding the Fourth Proportional to 80,856.87, 121,234.41 and 24,678.29

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Solution

The fourth proportional to 80,856.87, 121,234.41 and 24,678.29 is: 37,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,856.87 : 121,234.41 = 24,678.29 : x
  2. Step 2: Convert to fraction form
    80,856.87/121,234.41 = 24,678.29/x
  3. Step 3: Cross multiply
    80,856.87x = 121,234.41 × 24,678.29
  4. Step 4: Simplify right side
    80,856.87x = 2,991,857,321.79
  5. Step 5: Solve for x
    x = 2,991,857,321.79/80,856.87
  6. Step 6: Final answer
    x = 37,001.89

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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.