Home / 82,210.20-123,315.30-26,806.20

Finding the Fourth Proportional to 82,210.20, 123,315.30 and 26,806.20

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Solution

The fourth proportional to 82,210.20, 123,315.30 and 26,806.20 is: 40,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,210.20 : 123,315.30 = 26,806.20 : x
  2. Step 2: Convert to fraction form
    82,210.20/123,315.30 = 26,806.20/x
  3. Step 3: Cross multiply
    82,210.20x = 123,315.30 × 26,806.20
  4. Step 4: Simplify right side
    82,210.20x = 3,305,614,594.86
  5. Step 5: Solve for x
    x = 3,305,614,594.86/82,210.20
  6. Step 6: Final answer
    x = 40,209.30

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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.