Home / 83,324.38-124,986.57-20,999.74

Finding the Fourth Proportional to 83,324.38, 124,986.57 and 20,999.74

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Solution

The fourth proportional to 83,324.38, 124,986.57 and 20,999.74 is: 31,499.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,324.38 : 124,986.57 = 20,999.74 : x
  2. Step 2: Convert to fraction form
    83,324.38/124,986.57 = 20,999.74/x
  3. Step 3: Cross multiply
    83,324.38x = 124,986.57 × 20,999.74
  4. Step 4: Simplify right side
    83,324.38x = 2,624,685,473.49
  5. Step 5: Solve for x
    x = 2,624,685,473.49/83,324.38
  6. Step 6: Final answer
    x = 31,499.61

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Double scale
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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.