Home / 74,372.20-102,605.40-48,892.30

Finding the Fourth Proportional to 74,372.20, 102,605.40 and 48,892.30

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Solution

The fourth proportional to 74,372.20, 102,605.40 and 48,892.30 is: 67,452.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,372.20 : 102,605.40 = 48,892.30 : x
  2. Step 2: Convert to fraction form
    74,372.20/102,605.40 = 48,892.30/x
  3. Step 3: Cross multiply
    74,372.20x = 102,605.40 × 48,892.30
  4. Step 4: Simplify right side
    74,372.20x = 5,016,613,998.42
  5. Step 5: Solve for x
    x = 5,016,613,998.42/74,372.20
  6. Step 6: Final answer
    x = 67,452.81

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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.