Home / 90,724.86-125,167.14-54,901.80

Finding the Fourth Proportional to 90,724.86, 125,167.14 and 54,901.80

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Solution

The fourth proportional to 90,724.86, 125,167.14 and 54,901.80 is: 75,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,724.86 : 125,167.14 = 54,901.80 : x
  2. Step 2: Convert to fraction form
    90,724.86/125,167.14 = 54,901.80/x
  3. Step 3: Cross multiply
    90,724.86x = 125,167.14 × 54,901.80
  4. Step 4: Simplify right side
    90,724.86x = 6,871,901,286.85
  5. Step 5: Solve for x
    x = 6,871,901,286.85/90,724.86
  6. Step 6: Final answer
    x = 75,744.41

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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.