Home / 68,768.23-103,351.61-45,542.29

Finding the Fourth Proportional to 68,768.23, 103,351.61 and 45,542.29

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Solution

The fourth proportional to 68,768.23, 103,351.61 and 45,542.29 is: 68,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,768.23 : 103,351.61 = 45,542.29 : x
  2. Step 2: Convert to fraction form
    68,768.23/103,351.61 = 45,542.29/x
  3. Step 3: Cross multiply
    68,768.23x = 103,351.61 × 45,542.29
  4. Step 4: Simplify right side
    68,768.23x = 4,706,868,994.59
  5. Step 5: Solve for x
    x = 4,706,868,994.59/68,768.23
  6. Step 6: Final answer
    x = 68,445.40

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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.