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Finding the Fourth Proportional to 66,802.43, 100,208.51 and 22,428.81

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Solution

The fourth proportional to 66,802.43, 100,208.51 and 22,428.81 is: 33,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,802.43 : 100,208.51 = 22,428.81 : x
  2. Step 2: Convert to fraction form
    66,802.43/100,208.51 = 22,428.81/x
  3. Step 3: Cross multiply
    66,802.43x = 100,208.51 × 22,428.81
  4. Step 4: Simplify right side
    66,802.43x = 2,247,557,631.17
  5. Step 5: Solve for x
    x = 2,247,557,631.17/66,802.43
  6. Step 6: Final answer
    x = 33,644.85

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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.