Home / 68,005.65-102,008.33-18,085.76

Finding the Fourth Proportional to 68,005.65, 102,008.33 and 18,085.76

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Solution

The fourth proportional to 68,005.65, 102,008.33 and 18,085.76 is: 27,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,005.65 : 102,008.33 = 18,085.76 : x
  2. Step 2: Convert to fraction form
    68,005.65/102,008.33 = 18,085.76/x
  3. Step 3: Cross multiply
    68,005.65x = 102,008.33 × 18,085.76
  4. Step 4: Simplify right side
    68,005.65x = 1,844,897,573.91
  5. Step 5: Solve for x
    x = 1,844,897,573.91/68,005.65
  6. Step 6: Final answer
    x = 27,128.59

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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.