Home / 81,611.08-122,162.22-62,842.36

Finding the Fourth Proportional to 81,611.08, 122,162.22 and 62,842.36

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Solution

The fourth proportional to 81,611.08, 122,162.22 and 62,842.36 is: 94,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611.08 : 122,162.22 = 62,842.36 : x
  2. Step 2: Convert to fraction form
    81,611.08/122,162.22 = 62,842.36/x
  3. Step 3: Cross multiply
    81,611.08x = 122,162.22 × 62,842.36
  4. Step 4: Simplify right side
    81,611.08x = 7,676,962,207.64
  5. Step 5: Solve for x
    x = 7,676,962,207.64/81,611.08
  6. Step 6: Final answer
    x = 94,067.65

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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.