Home / 66,987.33-100,387.18-50,336.75

Finding the Fourth Proportional to 66,987.33, 100,387.18 and 50,336.75

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Solution

The fourth proportional to 66,987.33, 100,387.18 and 50,336.75 is: 75,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.33 : 100,387.18 = 50,336.75 : x
  2. Step 2: Convert to fraction form
    66,987.33/100,387.18 = 50,336.75/x
  3. Step 3: Cross multiply
    66,987.33x = 100,387.18 × 50,336.75
  4. Step 4: Simplify right side
    66,987.33x = 5,053,163,629.25
  5. Step 5: Solve for x
    x = 5,053,163,629.25/66,987.33
  6. Step 6: Final answer
    x = 75,434.62

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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.