Home / 81,394.04-122,071.94-22,215.62

Finding the Fourth Proportional to 81,394.04, 122,071.94 and 22,215.62

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Solution

The fourth proportional to 81,394.04, 122,071.94 and 22,215.62 is: 33,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,394.04 : 122,071.94 = 22,215.62 : x
  2. Step 2: Convert to fraction form
    81,394.04/122,071.94 = 22,215.62/x
  3. Step 3: Cross multiply
    81,394.04x = 122,071.94 × 22,215.62
  4. Step 4: Simplify right side
    81,394.04x = 2,711,903,831.70
  5. Step 5: Solve for x
    x = 2,711,903,831.70/81,394.04
  6. Step 6: Final answer
    x = 33,318.21

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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.