Home / 90,116.40-135,135.72-36,773.04

Finding the Fourth Proportional to 90,116.40, 135,135.72 and 36,773.04

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Solution

The fourth proportional to 90,116.40, 135,135.72 and 36,773.04 is: 55,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,116.40 : 135,135.72 = 36,773.04 : x
  2. Step 2: Convert to fraction form
    90,116.40/135,135.72 = 36,773.04/x
  3. Step 3: Cross multiply
    90,116.40x = 135,135.72 × 36,773.04
  4. Step 4: Simplify right side
    90,116.40x = 4,969,351,236.99
  5. Step 5: Solve for x
    x = 4,969,351,236.99/90,116.40
  6. Step 6: Final answer
    x = 55,143.69

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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.