Home / 71,119.28-98,140.98-39,282.02

Finding the Fourth Proportional to 71,119.28, 98,140.98 and 39,282.02

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Solution

The fourth proportional to 71,119.28, 98,140.98 and 39,282.02 is: 54,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,119.28 : 98,140.98 = 39,282.02 : x
  2. Step 2: Convert to fraction form
    71,119.28/98,140.98 = 39,282.02/x
  3. Step 3: Cross multiply
    71,119.28x = 98,140.98 × 39,282.02
  4. Step 4: Simplify right side
    71,119.28x = 3,855,175,939.18
  5. Step 5: Solve for x
    x = 3,855,175,939.18/71,119.28
  6. Step 6: Final answer
    x = 54,207.18

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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.