Home / 90,335.28-124,609.16-54,504.12

Finding the Fourth Proportional to 90,335.28, 124,609.16 and 54,504.12

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Solution

The fourth proportional to 90,335.28, 124,609.16 and 54,504.12 is: 75,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,335.28 : 124,609.16 = 54,504.12 : x
  2. Step 2: Convert to fraction form
    90,335.28/124,609.16 = 54,504.12/x
  3. Step 3: Cross multiply
    90,335.28x = 124,609.16 × 54,504.12
  4. Step 4: Simplify right side
    90,335.28x = 6,791,712,337.22
  5. Step 5: Solve for x
    x = 6,791,712,337.22/90,335.28
  6. Step 6: Final answer
    x = 75,183.39

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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.