Home / 90,442.62-135,620.76-40,523.13

Finding the Fourth Proportional to 90,442.62, 135,620.76 and 40,523.13

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Solution

The fourth proportional to 90,442.62, 135,620.76 and 40,523.13 is: 60,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,442.62 : 135,620.76 = 40,523.13 : x
  2. Step 2: Convert to fraction form
    90,442.62/135,620.76 = 40,523.13/x
  3. Step 3: Cross multiply
    90,442.62x = 135,620.76 × 40,523.13
  4. Step 4: Simplify right side
    90,442.62x = 5,495,777,688.18
  5. Step 5: Solve for x
    x = 5,495,777,688.18/90,442.62
  6. Step 6: Final answer
    x = 60,765.35

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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.