Home / 276,766.32-415,149.92-77,087.28

Finding the Fourth Proportional to 276,766.32, 415,149.92 and 77,087.28

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Solution

The fourth proportional to 276,766.32, 415,149.92 and 77,087.28 is: 115,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,766.32 : 415,149.92 = 77,087.28 : x
  2. Step 2: Convert to fraction form
    276,766.32/415,149.92 = 77,087.28/x
  3. Step 3: Cross multiply
    276,766.32x = 415,149.92 × 77,087.28
  4. Step 4: Simplify right side
    276,766.32x = 32,002,778,125.02
  5. Step 5: Solve for x
    x = 32,002,778,125.02/276,766.32
  6. Step 6: Final answer
    x = 115,631.04

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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.