Home / 52,134.57-78,201.38-12,691.76

Finding the Fourth Proportional to 52,134.57, 78,201.38 and 12,691.76

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Solution

The fourth proportional to 52,134.57, 78,201.38 and 12,691.76 is: 19,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,134.57 : 78,201.38 = 12,691.76 : x
  2. Step 2: Convert to fraction form
    52,134.57/78,201.38 = 12,691.76/x
  3. Step 3: Cross multiply
    52,134.57x = 78,201.38 × 12,691.76
  4. Step 4: Simplify right side
    52,134.57x = 992,512,787.35
  5. Step 5: Solve for x
    x = 992,512,787.35/52,134.57
  6. Step 6: Final answer
    x = 19,037.52

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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.