Home / 82,213.20-123,319.80-26,809.20

Finding the Fourth Proportional to 82,213.20, 123,319.80 and 26,809.20

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Solution

The fourth proportional to 82,213.20, 123,319.80 and 26,809.20 is: 40,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,213.20 : 123,319.80 = 26,809.20 : x
  2. Step 2: Convert to fraction form
    82,213.20/123,319.80 = 26,809.20/x
  3. Step 3: Cross multiply
    82,213.20x = 123,319.80 × 26,809.20
  4. Step 4: Simplify right side
    82,213.20x = 3,306,105,182.16
  5. Step 5: Solve for x
    x = 3,306,105,182.16/82,213.20
  6. Step 6: Final answer
    x = 40,213.80

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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.