Home / 71,945.20-99,284.49-40,116.11

Finding the Fourth Proportional to 71,945.20, 99,284.49 and 40,116.11

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Solution

The fourth proportional to 71,945.20, 99,284.49 and 40,116.11 is: 55,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,945.20 : 99,284.49 = 40,116.11 : x
  2. Step 2: Convert to fraction form
    71,945.20/99,284.49 = 40,116.11/x
  3. Step 3: Cross multiply
    71,945.20x = 99,284.49 × 40,116.11
  4. Step 4: Simplify right side
    71,945.20x = 3,982,907,522.13
  5. Step 5: Solve for x
    x = 3,982,907,522.13/71,945.20
  6. Step 6: Final answer
    x = 55,360.30

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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.