Home / 54,599.16-81,850-21,311.48

Finding the Fourth Proportional to 54,599.16, 81,850 and 21,311.48

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Solution

The fourth proportional to 54,599.16, 81,850 and 21,311.48 is: 31,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,599.16 : 81,850 = 21,311.48 : x
  2. Step 2: Convert to fraction form
    54,599.16/81,850 = 21,311.48/x
  3. Step 3: Cross multiply
    54,599.16x = 81,850 × 21,311.48
  4. Step 4: Simplify right side
    54,599.16x = 1,744,344,638
  5. Step 5: Solve for x
    x = 1,744,344,638/54,599.16
  6. Step 6: Final answer
    x = 31,948.20

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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.