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Finding the Fourth Proportional to 63,781.40, 88,029.11 and 36,940.22

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Solution

The fourth proportional to 63,781.40, 88,029.11 and 36,940.22 is: 50,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,781.40 : 88,029.11 = 36,940.22 : x
  2. Step 2: Convert to fraction form
    63,781.40/88,029.11 = 36,940.22/x
  3. Step 3: Cross multiply
    63,781.40x = 88,029.11 × 36,940.22
  4. Step 4: Simplify right side
    63,781.40x = 3,251,814,689.80
  5. Step 5: Solve for x
    x = 3,251,814,689.80/63,781.40
  6. Step 6: Final answer
    x = 50,983.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.