Home / 80,878.08-111,608.22-45,072

Finding the Fourth Proportional to 80,878.08, 111,608.22 and 45,072

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Solution

The fourth proportional to 80,878.08, 111,608.22 and 45,072 is: 62,197.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,878.08 : 111,608.22 = 45,072 : x
  2. Step 2: Convert to fraction form
    80,878.08/111,608.22 = 45,072/x
  3. Step 3: Cross multiply
    80,878.08x = 111,608.22 × 45,072
  4. Step 4: Simplify right side
    80,878.08x = 5,030,405,691.84
  5. Step 5: Solve for x
    x = 5,030,405,691.84/80,878.08
  6. Step 6: Final answer
    x = 62,197.39

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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.