Home / 82,316.88-123,431.40-26,141.76

Finding the Fourth Proportional to 82,316.88, 123,431.40 and 26,141.76

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Solution

The fourth proportional to 82,316.88, 123,431.40 and 26,141.76 is: 39,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,316.88 : 123,431.40 = 26,141.76 : x
  2. Step 2: Convert to fraction form
    82,316.88/123,431.40 = 26,141.76/x
  3. Step 3: Cross multiply
    82,316.88x = 123,431.40 × 26,141.76
  4. Step 4: Simplify right side
    82,316.88x = 3,226,714,035.26
  5. Step 5: Solve for x
    x = 3,226,714,035.26/82,316.88
  6. Step 6: Final answer
    x = 39,198.69

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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.