Home / 90,480.70-124,864.05-49,644.55

Finding the Fourth Proportional to 90,480.70, 124,864.05 and 49,644.55

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Solution

The fourth proportional to 90,480.70, 124,864.05 and 49,644.55 is: 68,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,480.70 : 124,864.05 = 49,644.55 : x
  2. Step 2: Convert to fraction form
    90,480.70/124,864.05 = 49,644.55/x
  3. Step 3: Cross multiply
    90,480.70x = 124,864.05 × 49,644.55
  4. Step 4: Simplify right side
    90,480.70x = 6,198,819,573.43
  5. Step 5: Solve for x
    x = 6,198,819,573.43/90,480.70
  6. Step 6: Final answer
    x = 68,509.85

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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.