Home / 81,611.33-122,162.60-62,842.61

Finding the Fourth Proportional to 81,611.33, 122,162.60 and 62,842.61

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Solution

The fourth proportional to 81,611.33, 122,162.60 and 62,842.61 is: 94,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611.33 : 122,162.60 = 62,842.61 : x
  2. Step 2: Convert to fraction form
    81,611.33/122,162.60 = 62,842.61/x
  3. Step 3: Cross multiply
    81,611.33x = 122,162.60 × 62,842.61
  4. Step 4: Simplify right side
    81,611.33x = 7,677,016,314.17
  5. Step 5: Solve for x
    x = 7,677,016,314.17/81,611.33
  6. Step 6: Final answer
    x = 94,068.02

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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.