Home / 85,841.38-128,781.96-26,673.85

Finding the Fourth Proportional to 85,841.38, 128,781.96 and 26,673.85

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Solution

The fourth proportional to 85,841.38, 128,781.96 and 26,673.85 is: 40,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,841.38 : 128,781.96 = 26,673.85 : x
  2. Step 2: Convert to fraction form
    85,841.38/128,781.96 = 26,673.85/x
  3. Step 3: Cross multiply
    85,841.38x = 128,781.96 × 26,673.85
  4. Step 4: Simplify right side
    85,841.38x = 3,435,110,683.75
  5. Step 5: Solve for x
    x = 3,435,110,683.75/85,841.38
  6. Step 6: Final answer
    x = 40,016.96

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1.5x scale

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.