Home / 102,449.88-141,375.42-57,735

Finding the Fourth Proportional to 102,449.88, 141,375.42 and 57,735

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Solution

The fourth proportional to 102,449.88, 141,375.42 and 57,735 is: 79,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,449.88 : 141,375.42 = 57,735 : x
  2. Step 2: Convert to fraction form
    102,449.88/141,375.42 = 57,735/x
  3. Step 3: Cross multiply
    102,449.88x = 141,375.42 × 57,735
  4. Step 4: Simplify right side
    102,449.88x = 8,162,309,873.70
  5. Step 5: Solve for x
    x = 8,162,309,873.70/102,449.88
  6. Step 6: Final answer
    x = 79,671.25

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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.