Home / 45,145.53-67,724.69-18,844.29

Finding the Fourth Proportional to 45,145.53, 67,724.69 and 18,844.29

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Solution

The fourth proportional to 45,145.53, 67,724.69 and 18,844.29 is: 28,269.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,145.53 : 67,724.69 = 18,844.29 : x
  2. Step 2: Convert to fraction form
    45,145.53/67,724.69 = 18,844.29/x
  3. Step 3: Cross multiply
    45,145.53x = 67,724.69 × 18,844.29
  4. Step 4: Simplify right side
    45,145.53x = 1,276,223,604.30
  5. Step 5: Solve for x
    x = 1,276,223,604.30/45,145.53
  6. Step 6: Final answer
    x = 28,269.10

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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.