Home / 45,175.72-67,763.74-31,988.20

Finding the Fourth Proportional to 45,175.72, 67,763.74 and 31,988.20

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Solution

The fourth proportional to 45,175.72, 67,763.74 and 31,988.20 is: 47,982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,175.72 : 67,763.74 = 31,988.20 : x
  2. Step 2: Convert to fraction form
    45,175.72/67,763.74 = 31,988.20/x
  3. Step 3: Cross multiply
    45,175.72x = 67,763.74 × 31,988.20
  4. Step 4: Simplify right side
    45,175.72x = 2,167,640,067.87
  5. Step 5: Solve for x
    x = 2,167,640,067.87/45,175.72
  6. Step 6: Final answer
    x = 47,982.41

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1.5x scale

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.