Home / 72,926.20-109,170.60-43,328.80

Finding the Fourth Proportional to 72,926.20, 109,170.60 and 43,328.80

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Solution

The fourth proportional to 72,926.20, 109,170.60 and 43,328.80 is: 64,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,926.20 : 109,170.60 = 43,328.80 : x
  2. Step 2: Convert to fraction form
    72,926.20/109,170.60 = 43,328.80/x
  3. Step 3: Cross multiply
    72,926.20x = 109,170.60 × 43,328.80
  4. Step 4: Simplify right side
    72,926.20x = 4,730,231,093.28
  5. Step 5: Solve for x
    x = 4,730,231,093.28/72,926.20
  6. Step 6: Final answer
    x = 64,863.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.