Home / 87,281.58-130,969.29-34,691.50

Finding the Fourth Proportional to 87,281.58, 130,969.29 and 34,691.50

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Solution

The fourth proportional to 87,281.58, 130,969.29 and 34,691.50 is: 52,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,281.58 : 130,969.29 = 34,691.50 : x
  2. Step 2: Convert to fraction form
    87,281.58/130,969.29 = 34,691.50/x
  3. Step 3: Cross multiply
    87,281.58x = 130,969.29 × 34,691.50
  4. Step 4: Simplify right side
    87,281.58x = 4,543,521,124.04
  5. Step 5: Solve for x
    x = 4,543,521,124.04/87,281.58
  6. Step 6: Final answer
    x = 52,055.90

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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.