Home / 75,877.40-113,816.10-61,115.15

Finding the Fourth Proportional to 75,877.40, 113,816.10 and 61,115.15

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Solution

The fourth proportional to 75,877.40, 113,816.10 and 61,115.15 is: 91,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,877.40 : 113,816.10 = 61,115.15 : x
  2. Step 2: Convert to fraction form
    75,877.40/113,816.10 = 61,115.15/x
  3. Step 3: Cross multiply
    75,877.40x = 113,816.10 × 61,115.15
  4. Step 4: Simplify right side
    75,877.40x = 6,955,888,023.92
  5. Step 5: Solve for x
    x = 6,955,888,023.92/75,877.40
  6. Step 6: Final answer
    x = 91,672.73

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Similar ratio
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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.