Home / 71,850.24-99,149.76-40,022.40

Finding the Fourth Proportional to 71,850.24, 99,149.76 and 40,022.40

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Solution

The fourth proportional to 71,850.24, 99,149.76 and 40,022.40 is: 55,228.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,850.24 : 99,149.76 = 40,022.40 : x
  2. Step 2: Convert to fraction form
    71,850.24/99,149.76 = 40,022.40/x
  3. Step 3: Cross multiply
    71,850.24x = 99,149.76 × 40,022.40
  4. Step 4: Simplify right side
    71,850.24x = 3,968,211,354.62
  5. Step 5: Solve for x
    x = 3,968,211,354.62/71,850.24
  6. Step 6: Final answer
    x = 55,228.92

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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.