Home / 83,919.29-125,878.92-28,515.29

Finding the Fourth Proportional to 83,919.29, 125,878.92 and 28,515.29

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Solution

The fourth proportional to 83,919.29, 125,878.92 and 28,515.29 is: 42,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,919.29 : 125,878.92 = 28,515.29 : x
  2. Step 2: Convert to fraction form
    83,919.29/125,878.92 = 28,515.29/x
  3. Step 3: Cross multiply
    83,919.29x = 125,878.92 × 28,515.29
  4. Step 4: Simplify right side
    83,919.29x = 3,589,473,279.29
  5. Step 5: Solve for x
    x = 3,589,473,279.29/83,919.29
  6. Step 6: Final answer
    x = 42,772.92

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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.