Home / 55,321.20-82,996.32-21,587.76

Finding the Fourth Proportional to 55,321.20, 82,996.32 and 21,587.76

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Solution

The fourth proportional to 55,321.20, 82,996.32 and 21,587.76 is: 32,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.20 : 82,996.32 = 21,587.76 : x
  2. Step 2: Convert to fraction form
    55,321.20/82,996.32 = 21,587.76/x
  3. Step 3: Cross multiply
    55,321.20x = 82,996.32 × 21,587.76
  4. Step 4: Simplify right side
    55,321.20x = 1,791,704,637.04
  5. Step 5: Solve for x
    x = 1,791,704,637.04/55,321.20
  6. Step 6: Final answer
    x = 32,387.31

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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.