Home / 90,414.43-124,771.73-50,127.15

Finding the Fourth Proportional to 90,414.43, 124,771.73 and 50,127.15

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Solution

The fourth proportional to 90,414.43, 124,771.73 and 50,127.15 is: 69,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,414.43 : 124,771.73 = 50,127.15 : x
  2. Step 2: Convert to fraction form
    90,414.43/124,771.73 = 50,127.15/x
  3. Step 3: Cross multiply
    90,414.43x = 124,771.73 × 50,127.15
  4. Step 4: Simplify right side
    90,414.43x = 6,254,451,442.73
  5. Step 5: Solve for x
    x = 6,254,451,442.73/90,414.43
  6. Step 6: Final answer
    x = 69,175.37

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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.