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Finding the Fourth Proportional to 66,938.40, 100,404.93 and 22,564.17

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Solution

The fourth proportional to 66,938.40, 100,404.93 and 22,564.17 is: 33,845.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,938.40 : 100,404.93 = 22,564.17 : x
  2. Step 2: Convert to fraction form
    66,938.40/100,404.93 = 22,564.17/x
  3. Step 3: Cross multiply
    66,938.40x = 100,404.93 × 22,564.17
  4. Step 4: Simplify right side
    66,938.40x = 2,265,553,909.36
  5. Step 5: Solve for x
    x = 2,265,553,909.36/66,938.40
  6. Step 6: Final answer
    x = 33,845.35

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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.