Home / 55,403.44-83,138.04-22,139.20

Finding the Fourth Proportional to 55,403.44, 83,138.04 and 22,139.20

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Solution

The fourth proportional to 55,403.44, 83,138.04 and 22,139.20 is: 33,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,403.44 : 83,138.04 = 22,139.20 : x
  2. Step 2: Convert to fraction form
    55,403.44/83,138.04 = 22,139.20/x
  3. Step 3: Cross multiply
    55,403.44x = 83,138.04 × 22,139.20
  4. Step 4: Simplify right side
    55,403.44x = 1,840,609,695.17
  5. Step 5: Solve for x
    x = 1,840,609,695.17/55,403.44
  6. Step 6: Final answer
    x = 33,221.94

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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.