Home / 68,025.40-101,868.38-42,989.92

Finding the Fourth Proportional to 68,025.40, 101,868.38 and 42,989.92

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Solution

The fourth proportional to 68,025.40, 101,868.38 and 42,989.92 is: 64,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,025.40 : 101,868.38 = 42,989.92 : x
  2. Step 2: Convert to fraction form
    68,025.40/101,868.38 = 42,989.92/x
  3. Step 3: Cross multiply
    68,025.40x = 101,868.38 × 42,989.92
  4. Step 4: Simplify right side
    68,025.40x = 4,379,313,506.73
  5. Step 5: Solve for x
    x = 4,379,313,506.73/68,025.40
  6. Step 6: Final answer
    x = 64,377.62

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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.