Home / 71,104.78-106,663.29-18,514.36

Finding the Fourth Proportional to 71,104.78, 106,663.29 and 18,514.36

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Solution

The fourth proportional to 71,104.78, 106,663.29 and 18,514.36 is: 27,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,104.78 : 106,663.29 = 18,514.36 : x
  2. Step 2: Convert to fraction form
    71,104.78/106,663.29 = 18,514.36/x
  3. Step 3: Cross multiply
    71,104.78x = 106,663.29 × 18,514.36
  4. Step 4: Simplify right side
    71,104.78x = 1,974,802,549.84
  5. Step 5: Solve for x
    x = 1,974,802,549.84/71,104.78
  6. Step 6: Final answer
    x = 27,773.13

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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.