Home / 68,738.24-103,147.04-37,148.40

Finding the Fourth Proportional to 68,738.24, 103,147.04 and 37,148.40

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Solution

The fourth proportional to 68,738.24, 103,147.04 and 37,148.40 is: 55,744.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,738.24 : 103,147.04 = 37,148.40 : x
  2. Step 2: Convert to fraction form
    68,738.24/103,147.04 = 37,148.40/x
  3. Step 3: Cross multiply
    68,738.24x = 103,147.04 × 37,148.40
  4. Step 4: Simplify right side
    68,738.24x = 3,831,747,500.74
  5. Step 5: Solve for x
    x = 3,831,747,500.74/68,738.24
  6. Step 6: Final answer
    x = 55,744.04

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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.