Home / 90,769.68-125,211.03-54,461.73

Finding the Fourth Proportional to 90,769.68, 125,211.03 and 54,461.73

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Solution

The fourth proportional to 90,769.68, 125,211.03 and 54,461.73 is: 75,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,769.68 : 125,211.03 = 54,461.73 : x
  2. Step 2: Convert to fraction form
    90,769.68/125,211.03 = 54,461.73/x
  3. Step 3: Cross multiply
    90,769.68x = 125,211.03 × 54,461.73
  4. Step 4: Simplify right side
    90,769.68x = 6,819,209,308.88
  5. Step 5: Solve for x
    x = 6,819,209,308.88/90,769.68
  6. Step 6: Final answer
    x = 75,126.51

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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.