Home / 68,031.30-102,045.07-18,111.83

Finding the Fourth Proportional to 68,031.30, 102,045.07 and 18,111.83

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Solution

The fourth proportional to 68,031.30, 102,045.07 and 18,111.83 is: 27,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.30 : 102,045.07 = 18,111.83 : x
  2. Step 2: Convert to fraction form
    68,031.30/102,045.07 = 18,111.83/x
  3. Step 3: Cross multiply
    68,031.30x = 102,045.07 × 18,111.83
  4. Step 4: Simplify right side
    68,031.30x = 1,848,222,708.65
  5. Step 5: Solve for x
    x = 1,848,222,708.65/68,031.30
  6. Step 6: Final answer
    x = 27,167.24

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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.