Home / 90,008.96-124,213.40-49,721.88

Finding the Fourth Proportional to 90,008.96, 124,213.40 and 49,721.88

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Solution

The fourth proportional to 90,008.96, 124,213.40 and 49,721.88 is: 68,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,008.96 : 124,213.40 = 49,721.88 : x
  2. Step 2: Convert to fraction form
    90,008.96/124,213.40 = 49,721.88/x
  3. Step 3: Cross multiply
    90,008.96x = 124,213.40 × 49,721.88
  4. Step 4: Simplify right side
    90,008.96x = 6,176,123,582.96
  5. Step 5: Solve for x
    x = 6,176,123,582.96/90,008.96
  6. Step 6: Final answer
    x = 68,616.76

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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.