Home / 51,220.80-76,841.46-21,638.52

Finding the Fourth Proportional to 51,220.80, 76,841.46 and 21,638.52

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Solution

The fourth proportional to 51,220.80, 76,841.46 and 21,638.52 is: 32,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,220.80 : 76,841.46 = 21,638.52 : x
  2. Step 2: Convert to fraction form
    51,220.80/76,841.46 = 21,638.52/x
  3. Step 3: Cross multiply
    51,220.80x = 76,841.46 × 21,638.52
  4. Step 4: Simplify right side
    51,220.80x = 1,662,735,469.04
  5. Step 5: Solve for x
    x = 1,662,735,469.04/51,220.80
  6. Step 6: Final answer
    x = 32,462.11

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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.