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Finding the Fourth Proportional to 79,861.98, 110,209.65 and 45,877.05

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Solution

The fourth proportional to 79,861.98, 110,209.65 and 45,877.05 is: 63,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,861.98 : 110,209.65 = 45,877.05 : x
  2. Step 2: Convert to fraction form
    79,861.98/110,209.65 = 45,877.05/x
  3. Step 3: Cross multiply
    79,861.98x = 110,209.65 × 45,877.05
  4. Step 4: Simplify right side
    79,861.98x = 5,056,093,451.49
  5. Step 5: Solve for x
    x = 5,056,093,451.49/79,861.98
  6. Step 6: Final answer
    x = 63,310.39

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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.