Home / 82,278.95-123,436.91-26,120.88

Finding the Fourth Proportional to 82,278.95, 123,436.91 and 26,120.88

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Solution

The fourth proportional to 82,278.95, 123,436.91 and 26,120.88 is: 39,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,278.95 : 123,436.91 = 26,120.88 : x
  2. Step 2: Convert to fraction form
    82,278.95/123,436.91 = 26,120.88/x
  3. Step 3: Cross multiply
    82,278.95x = 123,436.91 × 26,120.88
  4. Step 4: Simplify right side
    82,278.95x = 3,224,280,583.08
  5. Step 5: Solve for x
    x = 3,224,280,583.08/82,278.95
  6. Step 6: Final answer
    x = 39,187.19

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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.