Home / 81,287.57-112,181.21-45,475.44

Finding the Fourth Proportional to 81,287.57, 112,181.21 and 45,475.44

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Solution

The fourth proportional to 81,287.57, 112,181.21 and 45,475.44 is: 62,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,287.57 : 112,181.21 = 45,475.44 : x
  2. Step 2: Convert to fraction form
    81,287.57/112,181.21 = 45,475.44/x
  3. Step 3: Cross multiply
    81,287.57x = 112,181.21 × 45,475.44
  4. Step 4: Simplify right side
    81,287.57x = 5,101,489,657.11
  5. Step 5: Solve for x
    x = 5,101,489,657.11/81,287.57
  6. Step 6: Final answer
    x = 62,758.55

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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.