Home / 91,773.28-126,648-51,487.90

Finding the Fourth Proportional to 91,773.28, 126,648 and 51,487.90

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Solution

The fourth proportional to 91,773.28, 126,648 and 51,487.90 is: 71,053.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,773.28 : 126,648 = 51,487.90 : x
  2. Step 2: Convert to fraction form
    91,773.28/126,648 = 51,487.90/x
  3. Step 3: Cross multiply
    91,773.28x = 126,648 × 51,487.90
  4. Step 4: Simplify right side
    91,773.28x = 6,520,839,559.20
  5. Step 5: Solve for x
    x = 6,520,839,559.20/91,773.28
  6. Step 6: Final answer
    x = 71,053.79

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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.