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Finding the Fourth Proportional to 79,893.35, 110,249.12 and 45,877.90

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Solution

The fourth proportional to 79,893.35, 110,249.12 and 45,877.90 is: 63,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,893.35 : 110,249.12 = 45,877.90 : x
  2. Step 2: Convert to fraction form
    79,893.35/110,249.12 = 45,877.90/x
  3. Step 3: Cross multiply
    79,893.35x = 110,249.12 × 45,877.90
  4. Step 4: Simplify right side
    79,893.35x = 5,057,998,354.95
  5. Step 5: Solve for x
    x = 5,057,998,354.95/79,893.35
  6. Step 6: Final answer
    x = 63,309.38

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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.