Home / 54,999.20-82,521.12-19,941.68

Finding the Fourth Proportional to 54,999.20, 82,521.12 and 19,941.68

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Solution

The fourth proportional to 54,999.20, 82,521.12 and 19,941.68 is: 29,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,999.20 : 82,521.12 = 19,941.68 : x
  2. Step 2: Convert to fraction form
    54,999.20/82,521.12 = 19,941.68/x
  3. Step 3: Cross multiply
    54,999.20x = 82,521.12 × 19,941.68
  4. Step 4: Simplify right side
    54,999.20x = 1,645,609,768.28
  5. Step 5: Solve for x
    x = 1,645,609,768.28/54,999.20
  6. Step 6: Final answer
    x = 29,920.61

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1.5x scale

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.