Home / 91,425.68-126,179.56-51,154.88

Finding the Fourth Proportional to 91,425.68, 126,179.56 and 51,154.88

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Solution

The fourth proportional to 91,425.68, 126,179.56 and 51,154.88 is: 70,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,425.68 : 126,179.56 = 51,154.88 : x
  2. Step 2: Convert to fraction form
    91,425.68/126,179.56 = 51,154.88/x
  3. Step 3: Cross multiply
    91,425.68x = 126,179.56 × 51,154.88
  4. Step 4: Simplify right side
    91,425.68x = 6,454,700,250.25
  5. Step 5: Solve for x
    x = 6,454,700,250.25/91,425.68
  6. Step 6: Final answer
    x = 70,600.52

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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.