Home / 83,409.24-125,005.38-63,615

Finding the Fourth Proportional to 83,409.24, 125,005.38 and 63,615

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Solution

The fourth proportional to 83,409.24, 125,005.38 and 63,615 is: 95,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,409.24 : 125,005.38 = 63,615 : x
  2. Step 2: Convert to fraction form
    83,409.24/125,005.38 = 63,615/x
  3. Step 3: Cross multiply
    83,409.24x = 125,005.38 × 63,615
  4. Step 4: Simplify right side
    83,409.24x = 7,952,217,248.70
  5. Step 5: Solve for x
    x = 7,952,217,248.70/83,409.24
  6. Step 6: Final answer
    x = 95,339.76

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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.