Home / 71,945.28-99,284.49-40,114.18

Finding the Fourth Proportional to 71,945.28, 99,284.49 and 40,114.18

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Solution

The fourth proportional to 71,945.28, 99,284.49 and 40,114.18 is: 55,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,945.28 : 99,284.49 = 40,114.18 : x
  2. Step 2: Convert to fraction form
    71,945.28/99,284.49 = 40,114.18/x
  3. Step 3: Cross multiply
    71,945.28x = 99,284.49 × 40,114.18
  4. Step 4: Simplify right side
    71,945.28x = 3,982,715,903.07
  5. Step 5: Solve for x
    x = 3,982,715,903.07/71,945.28
  6. Step 6: Final answer
    x = 55,357.57

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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.