Home / 81,052.01-121,414.92-40,402.85

Finding the Fourth Proportional to 81,052.01, 121,414.92 and 40,402.85

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Solution

The fourth proportional to 81,052.01, 121,414.92 and 40,402.85 is: 60,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,052.01 : 121,414.92 = 40,402.85 : x
  2. Step 2: Convert to fraction form
    81,052.01/121,414.92 = 40,402.85/x
  3. Step 3: Cross multiply
    81,052.01x = 121,414.92 × 40,402.85
  4. Step 4: Simplify right side
    81,052.01x = 4,905,508,193.45
  5. Step 5: Solve for x
    x = 4,905,508,193.45/81,052.01
  6. Step 6: Final answer
    x = 60,522.97

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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.