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Finding the Fourth Proportional to 63,781.02, 88,018.11 and 35,486.64

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Solution

The fourth proportional to 63,781.02, 88,018.11 and 35,486.64 is: 48,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,781.02 : 88,018.11 = 35,486.64 : x
  2. Step 2: Convert to fraction form
    63,781.02/88,018.11 = 35,486.64/x
  3. Step 3: Cross multiply
    63,781.02x = 88,018.11 × 35,486.64
  4. Step 4: Simplify right side
    63,781.02x = 3,123,466,983.05
  5. Step 5: Solve for x
    x = 3,123,466,983.05/63,781.02
  6. Step 6: Final answer
    x = 48,971.73

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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.