Home / 54,496.16-81,695.80-21,208.44

Finding the Fourth Proportional to 54,496.16, 81,695.80 and 21,208.44

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Solution

The fourth proportional to 54,496.16, 81,695.80 and 21,208.44 is: 31,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,496.16 : 81,695.80 = 21,208.44 : x
  2. Step 2: Convert to fraction form
    54,496.16/81,695.80 = 21,208.44/x
  3. Step 3: Cross multiply
    54,496.16x = 81,695.80 × 21,208.44
  4. Step 4: Simplify right side
    54,496.16x = 1,732,640,472.55
  5. Step 5: Solve for x
    x = 1,732,640,472.55/54,496.16
  6. Step 6: Final answer
    x = 31,793.81

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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.