Home / 82,635.19-123,961.59-26,455.21

Finding the Fourth Proportional to 82,635.19, 123,961.59 and 26,455.21

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Solution

The fourth proportional to 82,635.19, 123,961.59 and 26,455.21 is: 39,685.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,635.19 : 123,961.59 = 26,455.21 : x
  2. Step 2: Convert to fraction form
    82,635.19/123,961.59 = 26,455.21/x
  3. Step 3: Cross multiply
    82,635.19x = 123,961.59 × 26,455.21
  4. Step 4: Simplify right side
    82,635.19x = 3,279,429,585.48
  5. Step 5: Solve for x
    x = 3,279,429,585.48/82,635.19
  6. Step 6: Final answer
    x = 39,685.63

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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.