Home / 77,787.20-116,695.84-53,872.48

Finding the Fourth Proportional to 77,787.20, 116,695.84 and 53,872.48

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Solution

The fourth proportional to 77,787.20, 116,695.84 and 53,872.48 is: 80,819.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,787.20 : 116,695.84 = 53,872.48 : x
  2. Step 2: Convert to fraction form
    77,787.20/116,695.84 = 53,872.48/x
  3. Step 3: Cross multiply
    77,787.20x = 116,695.84 × 53,872.48
  4. Step 4: Simplify right side
    77,787.20x = 6,286,694,306.48
  5. Step 5: Solve for x
    x = 6,286,694,306.48/77,787.20
  6. Step 6: Final answer
    x = 80,819.14

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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.