Home / 66,715.38-100,080.03-21,740.24

Finding the Fourth Proportional to 66,715.38, 100,080.03 and 21,740.24

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Solution

The fourth proportional to 66,715.38, 100,080.03 and 21,740.24 is: 32,612.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,715.38 : 100,080.03 = 21,740.24 : x
  2. Step 2: Convert to fraction form
    66,715.38/100,080.03 = 21,740.24/x
  3. Step 3: Cross multiply
    66,715.38x = 100,080.03 × 21,740.24
  4. Step 4: Simplify right side
    66,715.38x = 2,175,763,371.01
  5. Step 5: Solve for x
    x = 2,175,763,371.01/66,715.38
  6. Step 6: Final answer
    x = 32,612.62

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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.