Home / 68,217.63-102,337.38-28,780.55

Finding the Fourth Proportional to 68,217.63, 102,337.38 and 28,780.55

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Solution

The fourth proportional to 68,217.63, 102,337.38 and 28,780.55 is: 43,175.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,217.63 : 102,337.38 = 28,780.55 : x
  2. Step 2: Convert to fraction form
    68,217.63/102,337.38 = 28,780.55/x
  3. Step 3: Cross multiply
    68,217.63x = 102,337.38 × 28,780.55
  4. Step 4: Simplify right side
    68,217.63x = 2,945,326,081.96
  5. Step 5: Solve for x
    x = 2,945,326,081.96/68,217.63
  6. Step 6: Final answer
    x = 43,175.44

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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.