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Finding the Fourth Proportional to 82,045.86, 123,068.79 and 25,891.65

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Solution

The fourth proportional to 82,045.86, 123,068.79 and 25,891.65 is: 38,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,045.86 : 123,068.79 = 25,891.65 : x
  2. Step 2: Convert to fraction form
    82,045.86/123,068.79 = 25,891.65/x
  3. Step 3: Cross multiply
    82,045.86x = 123,068.79 × 25,891.65
  4. Step 4: Simplify right side
    82,045.86x = 3,186,454,036.60
  5. Step 5: Solve for x
    x = 3,186,454,036.60/82,045.86
  6. Step 6: Final answer
    x = 38,837.48

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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.