Home / 90,568.46-124,982.04-54,290.40

Finding the Fourth Proportional to 90,568.46, 124,982.04 and 54,290.40

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Solution

The fourth proportional to 90,568.46, 124,982.04 and 54,290.40 is: 74,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,568.46 : 124,982.04 = 54,290.40 : x
  2. Step 2: Convert to fraction form
    90,568.46/124,982.04 = 54,290.40/x
  3. Step 3: Cross multiply
    90,568.46x = 124,982.04 × 54,290.40
  4. Step 4: Simplify right side
    90,568.46x = 6,785,324,944.42
  5. Step 5: Solve for x
    x = 6,785,324,944.42/90,568.46
  6. Step 6: Final answer
    x = 74,919.29

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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.