Home / 91,412.52-126,148.92-51,126.12

Finding the Fourth Proportional to 91,412.52, 126,148.92 and 51,126.12

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Solution

The fourth proportional to 91,412.52, 126,148.92 and 51,126.12 is: 70,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,412.52 : 126,148.92 = 51,126.12 : x
  2. Step 2: Convert to fraction form
    91,412.52/126,148.92 = 51,126.12/x
  3. Step 3: Cross multiply
    91,412.52x = 126,148.92 × 51,126.12
  4. Step 4: Simplify right side
    91,412.52x = 6,449,504,821.79
  5. Step 5: Solve for x
    x = 6,449,504,821.79/91,412.52
  6. Step 6: Final answer
    x = 70,553.85

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1.5x scale

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.