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Finding the Fourth Proportional to 90,000.97, 124,200.54 and 49,717.53

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Solution

The fourth proportional to 90,000.97, 124,200.54 and 49,717.53 is: 68,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,000.97 : 124,200.54 = 49,717.53 : x
  2. Step 2: Convert to fraction form
    90,000.97/124,200.54 = 49,717.53/x
  3. Step 3: Cross multiply
    90,000.97x = 124,200.54 × 49,717.53
  4. Step 4: Simplify right side
    90,000.97x = 6,174,944,073.47
  5. Step 5: Solve for x
    x = 6,174,944,073.47/90,000.97
  6. Step 6: Final answer
    x = 68,609.75

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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.