Home / 90,546.60-135,732.42-31,337.76

Finding the Fourth Proportional to 90,546.60, 135,732.42 and 31,337.76

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Solution

The fourth proportional to 90,546.60, 135,732.42 and 31,337.76 is: 46,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,546.60 : 135,732.42 = 31,337.76 : x
  2. Step 2: Convert to fraction form
    90,546.60/135,732.42 = 31,337.76/x
  3. Step 3: Cross multiply
    90,546.60x = 135,732.42 × 31,337.76
  4. Step 4: Simplify right side
    90,546.60x = 4,253,550,002.18
  5. Step 5: Solve for x
    x = 4,253,550,002.18/90,546.60
  6. Step 6: Final answer
    x = 46,976.36

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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.