Home / 71,135.73-98,169.28-39,306.69

Finding the Fourth Proportional to 71,135.73, 98,169.28 and 39,306.69

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Solution

The fourth proportional to 71,135.73, 98,169.28 and 39,306.69 is: 54,244.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,135.73 : 98,169.28 = 39,306.69 : x
  2. Step 2: Convert to fraction form
    71,135.73/98,169.28 = 39,306.69/x
  3. Step 3: Cross multiply
    71,135.73x = 98,169.28 × 39,306.69
  4. Step 4: Simplify right side
    71,135.73x = 3,858,708,965.64
  5. Step 5: Solve for x
    x = 3,858,708,965.64/71,135.73
  6. Step 6: Final answer
    x = 54,244.32

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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.