Home / 54,261.34-81,397.05-16,821.70

Finding the Fourth Proportional to 54,261.34, 81,397.05 and 16,821.70

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Solution

The fourth proportional to 54,261.34, 81,397.05 and 16,821.70 is: 25,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,261.34 : 81,397.05 = 16,821.70 : x
  2. Step 2: Convert to fraction form
    54,261.34/81,397.05 = 16,821.70/x
  3. Step 3: Cross multiply
    54,261.34x = 81,397.05 × 16,821.70
  4. Step 4: Simplify right side
    54,261.34x = 1,369,236,755.99
  5. Step 5: Solve for x
    x = 1,369,236,755.99/54,261.34
  6. Step 6: Final answer
    x = 25,234.11

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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.