Home / 84,161.64-126,175.68-42,020.04

Finding the Fourth Proportional to 84,161.64, 126,175.68 and 42,020.04

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Solution

The fourth proportional to 84,161.64, 126,175.68 and 42,020.04 is: 62,996.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,161.64 : 126,175.68 = 42,020.04 : x
  2. Step 2: Convert to fraction form
    84,161.64/126,175.68 = 42,020.04/x
  3. Step 3: Cross multiply
    84,161.64x = 126,175.68 × 42,020.04
  4. Step 4: Simplify right side
    84,161.64x = 5,301,907,120.63
  5. Step 5: Solve for x
    x = 5,301,907,120.63/84,161.64
  6. Step 6: Final answer
    x = 62,996.72

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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.