Home / 82,508.10-123,701.50-26,315.88

Finding the Fourth Proportional to 82,508.10, 123,701.50 and 26,315.88

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Solution

The fourth proportional to 82,508.10, 123,701.50 and 26,315.88 is: 39,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,508.10 : 123,701.50 = 26,315.88 : x
  2. Step 2: Convert to fraction form
    82,508.10/123,701.50 = 26,315.88/x
  3. Step 3: Cross multiply
    82,508.10x = 123,701.50 × 26,315.88
  4. Step 4: Simplify right side
    82,508.10x = 3,255,313,829.82
  5. Step 5: Solve for x
    x = 3,255,313,829.82/82,508.10
  6. Step 6: Final answer
    x = 39,454.48

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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.