Home / 51,486.04-77,229.84-20,321

Finding the Fourth Proportional to 51,486.04, 77,229.84 and 20,321

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Solution

The fourth proportional to 51,486.04, 77,229.84 and 20,321 is: 30,481.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,486.04 : 77,229.84 = 20,321 : x
  2. Step 2: Convert to fraction form
    51,486.04/77,229.84 = 20,321/x
  3. Step 3: Cross multiply
    51,486.04x = 77,229.84 × 20,321
  4. Step 4: Simplify right side
    51,486.04x = 1,569,387,578.64
  5. Step 5: Solve for x
    x = 1,569,387,578.64/51,486.04
  6. Step 6: Final answer
    x = 30,481.81

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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.