Home / 102,760.60-141,807.84-57,439.48

Finding the Fourth Proportional to 102,760.60, 141,807.84 and 57,439.48

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Solution

The fourth proportional to 102,760.60, 141,807.84 and 57,439.48 is: 79,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,760.60 : 141,807.84 = 57,439.48 : x
  2. Step 2: Convert to fraction form
    102,760.60/141,807.84 = 57,439.48/x
  3. Step 3: Cross multiply
    102,760.60x = 141,807.84 × 57,439.48
  4. Step 4: Simplify right side
    102,760.60x = 8,145,368,589.52
  5. Step 5: Solve for x
    x = 8,145,368,589.52/102,760.60
  6. Step 6: Final answer
    x = 79,265.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.