Home / 90,292.81-124,542.19-61,949.29

Finding the Fourth Proportional to 90,292.81, 124,542.19 and 61,949.29

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Solution

The fourth proportional to 90,292.81, 124,542.19 and 61,949.29 is: 85,447.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,292.81 : 124,542.19 = 61,949.29 : x
  2. Step 2: Convert to fraction form
    90,292.81/124,542.19 = 61,949.29/x
  3. Step 3: Cross multiply
    90,292.81x = 124,542.19 × 61,949.29
  4. Step 4: Simplify right side
    90,292.81x = 7,715,300,245.55
  5. Step 5: Solve for x
    x = 7,715,300,245.55/90,292.81
  6. Step 6: Final answer
    x = 85,447.56

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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.