Home / 90,231.42-124,488.85-51,989.97

Finding the Fourth Proportional to 90,231.42, 124,488.85 and 51,989.97

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Solution

The fourth proportional to 90,231.42, 124,488.85 and 51,989.97 is: 71,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,231.42 : 124,488.85 = 51,989.97 : x
  2. Step 2: Convert to fraction form
    90,231.42/124,488.85 = 51,989.97/x
  3. Step 3: Cross multiply
    90,231.42x = 124,488.85 × 51,989.97
  4. Step 4: Simplify right side
    90,231.42x = 6,472,171,758.08
  5. Step 5: Solve for x
    x = 6,472,171,758.08/90,231.42
  6. Step 6: Final answer
    x = 71,728.59

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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.