Home / 80,211.45-110,573.91-61,057.86

Finding the Fourth Proportional to 80,211.45, 110,573.91 and 61,057.86

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Solution

The fourth proportional to 80,211.45, 110,573.91 and 61,057.86 is: 84,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,211.45 : 110,573.91 = 61,057.86 : x
  2. Step 2: Convert to fraction form
    80,211.45/110,573.91 = 61,057.86/x
  3. Step 3: Cross multiply
    80,211.45x = 110,573.91 × 61,057.86
  4. Step 4: Simplify right side
    80,211.45x = 6,751,406,316.43
  5. Step 5: Solve for x
    x = 6,751,406,316.43/80,211.45
  6. Step 6: Final answer
    x = 84,170.11

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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.