Home / 68,031.39-102,045.21-18,111.92

Finding the Fourth Proportional to 68,031.39, 102,045.21 and 18,111.92

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Solution

The fourth proportional to 68,031.39, 102,045.21 and 18,111.92 is: 27,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.39 : 102,045.21 = 18,111.92 : x
  2. Step 2: Convert to fraction form
    68,031.39/102,045.21 = 18,111.92/x
  3. Step 3: Cross multiply
    68,031.39x = 102,045.21 × 18,111.92
  4. Step 4: Simplify right side
    68,031.39x = 1,848,234,935.02
  5. Step 5: Solve for x
    x = 1,848,234,935.02/68,031.39
  6. Step 6: Final answer
    x = 27,167.38

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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.