Home / 68,780.52-103,170.82-45,401.50

Finding the Fourth Proportional to 68,780.52, 103,170.82 and 45,401.50

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Solution

The fourth proportional to 68,780.52, 103,170.82 and 45,401.50 is: 68,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,780.52 : 103,170.82 = 45,401.50 : x
  2. Step 2: Convert to fraction form
    68,780.52/103,170.82 = 45,401.50/x
  3. Step 3: Cross multiply
    68,780.52x = 103,170.82 × 45,401.50
  4. Step 4: Simplify right side
    68,780.52x = 4,684,109,984.23
  5. Step 5: Solve for x
    x = 4,684,109,984.23/68,780.52
  6. Step 6: Final answer
    x = 68,102.28

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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.