Home / 90,098.11-124,331.48-49,261.48

Finding the Fourth Proportional to 90,098.11, 124,331.48 and 49,261.48

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Solution

The fourth proportional to 90,098.11, 124,331.48 and 49,261.48 is: 67,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,098.11 : 124,331.48 = 49,261.48 : x
  2. Step 2: Convert to fraction form
    90,098.11/124,331.48 = 49,261.48/x
  3. Step 3: Cross multiply
    90,098.11x = 124,331.48 × 49,261.48
  4. Step 4: Simplify right side
    90,098.11x = 6,124,752,715.39
  5. Step 5: Solve for x
    x = 6,124,752,715.39/90,098.11
  6. Step 6: Final answer
    x = 67,978.70

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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.