Home / 71,943.20-99,281.73-40,114.11

Finding the Fourth Proportional to 71,943.20, 99,281.73 and 40,114.11

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Solution

The fourth proportional to 71,943.20, 99,281.73 and 40,114.11 is: 55,357.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,943.20 : 99,281.73 = 40,114.11 : x
  2. Step 2: Convert to fraction form
    71,943.20/99,281.73 = 40,114.11/x
  3. Step 3: Cross multiply
    71,943.20x = 99,281.73 × 40,114.11
  4. Step 4: Simplify right side
    71,943.20x = 3,982,598,238.21
  5. Step 5: Solve for x
    x = 3,982,598,238.21/71,943.20
  6. Step 6: Final answer
    x = 55,357.54

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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.