Home / 88,891.28-122,700.86-51,180.56

Finding the Fourth Proportional to 88,891.28, 122,700.86 and 51,180.56

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Solution

The fourth proportional to 88,891.28, 122,700.86 and 51,180.56 is: 70,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,891.28 : 122,700.86 = 51,180.56 : x
  2. Step 2: Convert to fraction form
    88,891.28/122,700.86 = 51,180.56/x
  3. Step 3: Cross multiply
    88,891.28x = 122,700.86 × 51,180.56
  4. Step 4: Simplify right side
    88,891.28x = 6,279,898,471.38
  5. Step 5: Solve for x
    x = 6,279,898,471.38/88,891.28
  6. Step 6: Final answer
    x = 70,646.96

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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.