Home / 90,609.90-125,034.34-52,371.92

Finding the Fourth Proportional to 90,609.90, 125,034.34 and 52,371.92

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Solution

The fourth proportional to 90,609.90, 125,034.34 and 52,371.92 is: 72,269.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,609.90 : 125,034.34 = 52,371.92 : x
  2. Step 2: Convert to fraction form
    90,609.90/125,034.34 = 52,371.92/x
  3. Step 3: Cross multiply
    90,609.90x = 125,034.34 × 52,371.92
  4. Step 4: Simplify right side
    90,609.90x = 6,548,288,451.73
  5. Step 5: Solve for x
    x = 6,548,288,451.73/90,609.90
  6. Step 6: Final answer
    x = 72,269.02

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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.