Home / 83,721.30-125,581.95-28,317.30

Finding the Fourth Proportional to 83,721.30, 125,581.95 and 28,317.30

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Solution

The fourth proportional to 83,721.30, 125,581.95 and 28,317.30 is: 42,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,721.30 : 125,581.95 = 28,317.30 : x
  2. Step 2: Convert to fraction form
    83,721.30/125,581.95 = 28,317.30/x
  3. Step 3: Cross multiply
    83,721.30x = 125,581.95 × 28,317.30
  4. Step 4: Simplify right side
    83,721.30x = 3,556,141,752.74
  5. Step 5: Solve for x
    x = 3,556,141,752.74/83,721.30
  6. Step 6: Final answer
    x = 42,475.95

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Similar ratio
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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.