Home / 55,192.74-82,780.74-20,132.43

Finding the Fourth Proportional to 55,192.74, 82,780.74 and 20,132.43

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Solution

The fourth proportional to 55,192.74, 82,780.74 and 20,132.43 is: 30,195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,192.74 : 82,780.74 = 20,132.43 : x
  2. Step 2: Convert to fraction form
    55,192.74/82,780.74 = 20,132.43/x
  3. Step 3: Cross multiply
    55,192.74x = 82,780.74 × 20,132.43
  4. Step 4: Simplify right side
    55,192.74x = 1,666,577,453.40
  5. Step 5: Solve for x
    x = 1,666,577,453.40/55,192.74
  6. Step 6: Final answer
    x = 30,195.59

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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.