Home / 52,679.40-72,691.60-31,169.80

Finding the Fourth Proportional to 52,679.40, 72,691.60 and 31,169.80

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Solution

The fourth proportional to 52,679.40, 72,691.60 and 31,169.80 is: 43,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,679.40 : 72,691.60 = 31,169.80 : x
  2. Step 2: Convert to fraction form
    52,679.40/72,691.60 = 31,169.80/x
  3. Step 3: Cross multiply
    52,679.40x = 72,691.60 × 31,169.80
  4. Step 4: Simplify right side
    52,679.40x = 2,265,782,633.68
  5. Step 5: Solve for x
    x = 2,265,782,633.68/52,679.40
  6. Step 6: Final answer
    x = 43,010.79

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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.