Home / 77,060.64-115,382.24-40,046.88

Finding the Fourth Proportional to 77,060.64, 115,382.24 and 40,046.88

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Solution

The fourth proportional to 77,060.64, 115,382.24 and 40,046.88 is: 59,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,060.64 : 115,382.24 = 40,046.88 : x
  2. Step 2: Convert to fraction form
    77,060.64/115,382.24 = 40,046.88/x
  3. Step 3: Cross multiply
    77,060.64x = 115,382.24 × 40,046.88
  4. Step 4: Simplify right side
    77,060.64x = 4,620,698,719.41
  5. Step 5: Solve for x
    x = 4,620,698,719.41/77,060.64
  6. Step 6: Final answer
    x = 59,961.85

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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.