Home / 90,079.52-124,298.96-49,787.82

Finding the Fourth Proportional to 90,079.52, 124,298.96 and 49,787.82

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Solution

The fourth proportional to 90,079.52, 124,298.96 and 49,787.82 is: 68,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,079.52 : 124,298.96 = 49,787.82 : x
  2. Step 2: Convert to fraction form
    90,079.52/124,298.96 = 49,787.82/x
  3. Step 3: Cross multiply
    90,079.52x = 124,298.96 × 49,787.82
  4. Step 4: Simplify right side
    90,079.52x = 6,188,573,997.73
  5. Step 5: Solve for x
    x = 6,188,573,997.73/90,079.52
  6. Step 6: Final answer
    x = 68,701.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.