Home / 83,965.60-125,948.40-27,790.60

Finding the Fourth Proportional to 83,965.60, 125,948.40 and 27,790.60

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Solution

The fourth proportional to 83,965.60, 125,948.40 and 27,790.60 is: 41,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,965.60 : 125,948.40 = 27,790.60 : x
  2. Step 2: Convert to fraction form
    83,965.60/125,948.40 = 27,790.60/x
  3. Step 3: Cross multiply
    83,965.60x = 125,948.40 × 27,790.60
  4. Step 4: Simplify right side
    83,965.60x = 3,500,181,605.04
  5. Step 5: Solve for x
    x = 3,500,181,605.04/83,965.60
  6. Step 6: Final answer
    x = 41,685.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.