Home / 55,139.52-82,702.70-15,162.56

Finding the Fourth Proportional to 55,139.52, 82,702.70 and 15,162.56

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Solution

The fourth proportional to 55,139.52, 82,702.70 and 15,162.56 is: 22,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,139.52 : 82,702.70 = 15,162.56 : x
  2. Step 2: Convert to fraction form
    55,139.52/82,702.70 = 15,162.56/x
  3. Step 3: Cross multiply
    55,139.52x = 82,702.70 × 15,162.56
  4. Step 4: Simplify right side
    55,139.52x = 1,253,984,895.58
  5. Step 5: Solve for x
    x = 1,253,984,895.58/55,139.52
  6. Step 6: Final answer
    x = 22,742.04

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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.