Home / 90,204.92-135,304.55-42,854.07

Finding the Fourth Proportional to 90,204.92, 135,304.55 and 42,854.07

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Solution

The fourth proportional to 90,204.92, 135,304.55 and 42,854.07 is: 64,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,204.92 : 135,304.55 = 42,854.07 : x
  2. Step 2: Convert to fraction form
    90,204.92/135,304.55 = 42,854.07/x
  3. Step 3: Cross multiply
    90,204.92x = 135,304.55 × 42,854.07
  4. Step 4: Simplify right side
    90,204.92x = 5,798,350,657.02
  5. Step 5: Solve for x
    x = 5,798,350,657.02/90,204.92
  6. Step 6: Final answer
    x = 64,279.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.