Home / 71,236.14-98,306.08-39,405.04

Finding the Fourth Proportional to 71,236.14, 98,306.08 and 39,405.04

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Solution

The fourth proportional to 71,236.14, 98,306.08 and 39,405.04 is: 54,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,236.14 : 98,306.08 = 39,405.04 : x
  2. Step 2: Convert to fraction form
    71,236.14/98,306.08 = 39,405.04/x
  3. Step 3: Cross multiply
    71,236.14x = 98,306.08 × 39,405.04
  4. Step 4: Simplify right side
    71,236.14x = 3,873,755,036.68
  5. Step 5: Solve for x
    x = 3,873,755,036.68/71,236.14
  6. Step 6: Final answer
    x = 54,379.07

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1.5x scale

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.