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Finding the Fourth Proportional to 79,863.75, 110,219.40 and 45,876.96

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Solution

The fourth proportional to 79,863.75, 110,219.40 and 45,876.96 is: 63,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863.75 : 110,219.40 = 45,876.96 : x
  2. Step 2: Convert to fraction form
    79,863.75/110,219.40 = 45,876.96/x
  3. Step 3: Cross multiply
    79,863.75x = 110,219.40 × 45,876.96
  4. Step 4: Simplify right side
    79,863.75x = 5,056,531,005.02
  5. Step 5: Solve for x
    x = 5,056,531,005.02/79,863.75
  6. Step 6: Final answer
    x = 63,314.47

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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.