Home / 91,426.68-126,180.94-51,155.88

Finding the Fourth Proportional to 91,426.68, 126,180.94 and 51,155.88

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Solution

The fourth proportional to 91,426.68, 126,180.94 and 51,155.88 is: 70,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,426.68 : 126,180.94 = 51,155.88 : x
  2. Step 2: Convert to fraction form
    91,426.68/126,180.94 = 51,155.88/x
  3. Step 3: Cross multiply
    91,426.68x = 126,180.94 × 51,155.88
  4. Step 4: Simplify right side
    91,426.68x = 6,454,897,024.93
  5. Step 5: Solve for x
    x = 6,454,897,024.93/91,426.68
  6. Step 6: Final answer
    x = 70,601.90

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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.