Home / 73,269.10-109,910.88-20,679.04

Finding the Fourth Proportional to 73,269.10, 109,910.88 and 20,679.04

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Solution

The fourth proportional to 73,269.10, 109,910.88 and 20,679.04 is: 31,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,269.10 : 109,910.88 = 20,679.04 : x
  2. Step 2: Convert to fraction form
    73,269.10/109,910.88 = 20,679.04/x
  3. Step 3: Cross multiply
    73,269.10x = 109,910.88 × 20,679.04
  4. Step 4: Simplify right side
    73,269.10x = 2,272,851,483.96
  5. Step 5: Solve for x
    x = 2,272,851,483.96/73,269.10
  6. Step 6: Final answer
    x = 31,020.60

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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.