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Finding the Fourth Proportional to 63,919.89, 88,205.76 and 36,690.21

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Solution

The fourth proportional to 63,919.89, 88,205.76 and 36,690.21 is: 50,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,919.89 : 88,205.76 = 36,690.21 : x
  2. Step 2: Convert to fraction form
    63,919.89/88,205.76 = 36,690.21/x
  3. Step 3: Cross multiply
    63,919.89x = 88,205.76 × 36,690.21
  4. Step 4: Simplify right side
    63,919.89x = 3,236,287,857.61
  5. Step 5: Solve for x
    x = 3,236,287,857.61/63,919.89
  6. Step 6: Final answer
    x = 50,630.37

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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.