Home / 71,119.04-98,143.96-39,287.95

Finding the Fourth Proportional to 71,119.04, 98,143.96 and 39,287.95

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Solution

The fourth proportional to 71,119.04, 98,143.96 and 39,287.95 is: 54,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,119.04 : 98,143.96 = 39,287.95 : x
  2. Step 2: Convert to fraction form
    71,119.04/98,143.96 = 39,287.95/x
  3. Step 3: Cross multiply
    71,119.04x = 98,143.96 × 39,287.95
  4. Step 4: Simplify right side
    71,119.04x = 3,855,874,993.28
  5. Step 5: Solve for x
    x = 3,855,874,993.28/71,119.04
  6. Step 6: Final answer
    x = 54,217.20

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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.