Home / 54,780.76-82,134.06-21,480.04

Finding the Fourth Proportional to 54,780.76, 82,134.06 and 21,480.04

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Solution

The fourth proportional to 54,780.76, 82,134.06 and 21,480.04 is: 32,205.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,780.76 : 82,134.06 = 21,480.04 : x
  2. Step 2: Convert to fraction form
    54,780.76/82,134.06 = 21,480.04/x
  3. Step 3: Cross multiply
    54,780.76x = 82,134.06 × 21,480.04
  4. Step 4: Simplify right side
    54,780.76x = 1,764,242,894.16
  5. Step 5: Solve for x
    x = 1,764,242,894.16/54,780.76
  6. Step 6: Final answer
    x = 32,205.52

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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.