Home / 71,845.06-99,149.24-40,013.96

Finding the Fourth Proportional to 71,845.06, 99,149.24 and 40,013.96

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Solution

The fourth proportional to 71,845.06, 99,149.24 and 40,013.96 is: 55,220.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,845.06 : 99,149.24 = 40,013.96 : x
  2. Step 2: Convert to fraction form
    71,845.06/99,149.24 = 40,013.96/x
  3. Step 3: Cross multiply
    71,845.06x = 99,149.24 × 40,013.96
  4. Step 4: Simplify right side
    71,845.06x = 3,967,353,475.52
  5. Step 5: Solve for x
    x = 3,967,353,475.52/71,845.06
  6. Step 6: Final answer
    x = 55,220.96

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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.