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Finding the Fourth Proportional to 63,781.92, 88,009.08 and 36,919.20

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Solution

The fourth proportional to 63,781.92, 88,009.08 and 36,919.20 is: 50,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,781.92 : 88,009.08 = 36,919.20 : x
  2. Step 2: Convert to fraction form
    63,781.92/88,009.08 = 36,919.20/x
  3. Step 3: Cross multiply
    63,781.92x = 88,009.08 × 36,919.20
  4. Step 4: Simplify right side
    63,781.92x = 3,249,224,826.34
  5. Step 5: Solve for x
    x = 3,249,224,826.34/63,781.92
  6. Step 6: Final answer
    x = 50,942.73

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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.