Home / 71,024.98-106,554.15-21,105.46

Finding the Fourth Proportional to 71,024.98, 106,554.15 and 21,105.46

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Solution

The fourth proportional to 71,024.98, 106,554.15 and 21,105.46 is: 31,663.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,024.98 : 106,554.15 = 21,105.46 : x
  2. Step 2: Convert to fraction form
    71,024.98/106,554.15 = 21,105.46/x
  3. Step 3: Cross multiply
    71,024.98x = 106,554.15 × 21,105.46
  4. Step 4: Simplify right side
    71,024.98x = 2,248,874,350.66
  5. Step 5: Solve for x
    x = 2,248,874,350.66/71,024.98
  6. Step 6: Final answer
    x = 31,663.15

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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.