Home / 127,724.46-191,616.48-38,977.80

Finding the Fourth Proportional to 127,724.46, 191,616.48 and 38,977.80

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Solution

The fourth proportional to 127,724.46, 191,616.48 and 38,977.80 is: 58,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,724.46 : 191,616.48 = 38,977.80 : x
  2. Step 2: Convert to fraction form
    127,724.46/191,616.48 = 38,977.80/x
  3. Step 3: Cross multiply
    127,724.46x = 191,616.48 × 38,977.80
  4. Step 4: Simplify right side
    127,724.46x = 7,468,788,834.14
  5. Step 5: Solve for x
    x = 7,468,788,834.14/127,724.46
  6. Step 6: Final answer
    x = 58,475.79

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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.