Home / 127,727.64-191,591.46-38,981.61

Finding the Fourth Proportional to 127,727.64, 191,591.46 and 38,981.61

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Solution

The fourth proportional to 127,727.64, 191,591.46 and 38,981.61 is: 58,472.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,727.64 : 191,591.46 = 38,981.61 : x
  2. Step 2: Convert to fraction form
    127,727.64/191,591.46 = 38,981.61/x
  3. Step 3: Cross multiply
    127,727.64x = 191,591.46 × 38,981.61
  4. Step 4: Simplify right side
    127,727.64x = 7,468,543,573.05
  5. Step 5: Solve for x
    x = 7,468,543,573.05/127,727.64
  6. Step 6: Final answer
    x = 58,472.42

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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.