Home / 68,438.28-102,721.98-35,181.66

Finding the Fourth Proportional to 68,438.28, 102,721.98 and 35,181.66

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Solution

The fourth proportional to 68,438.28, 102,721.98 and 35,181.66 is: 52,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,438.28 : 102,721.98 = 35,181.66 : x
  2. Step 2: Convert to fraction form
    68,438.28/102,721.98 = 35,181.66/x
  3. Step 3: Cross multiply
    68,438.28x = 102,721.98 × 35,181.66
  4. Step 4: Simplify right side
    68,438.28x = 3,613,929,774.89
  5. Step 5: Solve for x
    x = 3,613,929,774.89/68,438.28
  6. Step 6: Final answer
    x = 52,805.68

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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.