Home / 72,344.79-99,842.36-40,082.49

Finding the Fourth Proportional to 72,344.79, 99,842.36 and 40,082.49

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Solution

The fourth proportional to 72,344.79, 99,842.36 and 40,082.49 is: 55,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,344.79 : 99,842.36 = 40,082.49 : x
  2. Step 2: Convert to fraction form
    72,344.79/99,842.36 = 40,082.49/x
  3. Step 3: Cross multiply
    72,344.79x = 99,842.36 × 40,082.49
  4. Step 4: Simplify right side
    72,344.79x = 4,001,930,195.86
  5. Step 5: Solve for x
    x = 4,001,930,195.86/72,344.79
  6. Step 6: Final answer
    x = 55,317.46

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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.