Home / 90,601.20-125,031.35-50,318.74

Finding the Fourth Proportional to 90,601.20, 125,031.35 and 50,318.74

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Solution

The fourth proportional to 90,601.20, 125,031.35 and 50,318.74 is: 69,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,601.20 : 125,031.35 = 50,318.74 : x
  2. Step 2: Convert to fraction form
    90,601.20/125,031.35 = 50,318.74/x
  3. Step 3: Cross multiply
    90,601.20x = 125,031.35 × 50,318.74
  4. Step 4: Simplify right side
    90,601.20x = 6,291,419,805.72
  5. Step 5: Solve for x
    x = 6,291,419,805.72/90,601.20
  6. Step 6: Final answer
    x = 69,440.80

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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.