Home / 83,620.13-125,430.19-28,216.13

Finding the Fourth Proportional to 83,620.13, 125,430.19 and 28,216.13

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Solution

The fourth proportional to 83,620.13, 125,430.19 and 28,216.13 is: 42,324.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620.13 : 125,430.19 = 28,216.13 : x
  2. Step 2: Convert to fraction form
    83,620.13/125,430.19 = 28,216.13/x
  3. Step 3: Cross multiply
    83,620.13x = 125,430.19 × 28,216.13
  4. Step 4: Simplify right side
    83,620.13x = 3,539,153,849.27
  5. Step 5: Solve for x
    x = 3,539,153,849.27/83,620.13
  6. Step 6: Final answer
    x = 42,324.19

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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.