Home / 90,261.18-124,572.39-54,471.66

Finding the Fourth Proportional to 90,261.18, 124,572.39 and 54,471.66

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Solution

The fourth proportional to 90,261.18, 124,572.39 and 54,471.66 is: 75,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,261.18 : 124,572.39 = 54,471.66 : x
  2. Step 2: Convert to fraction form
    90,261.18/124,572.39 = 54,471.66/x
  3. Step 3: Cross multiply
    90,261.18x = 124,572.39 × 54,471.66
  4. Step 4: Simplify right side
    90,261.18x = 6,785,664,873.47
  5. Step 5: Solve for x
    x = 6,785,664,873.47/90,261.18
  6. Step 6: Final answer
    x = 75,178.11

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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.