Home / 80,861.83-111,589.45-45,053.10

Finding the Fourth Proportional to 80,861.83, 111,589.45 and 45,053.10

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Solution

The fourth proportional to 80,861.83, 111,589.45 and 45,053.10 is: 62,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,861.83 : 111,589.45 = 45,053.10 : x
  2. Step 2: Convert to fraction form
    80,861.83/111,589.45 = 45,053.10/x
  3. Step 3: Cross multiply
    80,861.83x = 111,589.45 × 45,053.10
  4. Step 4: Simplify right side
    80,861.83x = 5,027,450,537.16
  5. Step 5: Solve for x
    x = 5,027,450,537.16/80,861.83
  6. Step 6: Final answer
    x = 62,173.35

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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.