Home / 91,440.88-126,176.92-55,144.20

Finding the Fourth Proportional to 91,440.88, 126,176.92 and 55,144.20

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Solution

The fourth proportional to 91,440.88, 126,176.92 and 55,144.20 is: 76,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,440.88 : 126,176.92 = 55,144.20 : x
  2. Step 2: Convert to fraction form
    91,440.88/126,176.92 = 55,144.20/x
  3. Step 3: Cross multiply
    91,440.88x = 126,176.92 × 55,144.20
  4. Step 4: Simplify right side
    91,440.88x = 6,957,925,311.86
  5. Step 5: Solve for x
    x = 6,957,925,311.86/91,440.88
  6. Step 6: Final answer
    x = 76,092.06

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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.