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Finding the Fourth Proportional to 66,757.17, 100,152.14 and 20,010

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Solution

The fourth proportional to 66,757.17, 100,152.14 and 20,010 is: 30,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,757.17 : 100,152.14 = 20,010 : x
  2. Step 2: Convert to fraction form
    66,757.17/100,152.14 = 20,010/x
  3. Step 3: Cross multiply
    66,757.17x = 100,152.14 × 20,010
  4. Step 4: Simplify right side
    66,757.17x = 2,004,044,221.35
  5. Step 5: Solve for x
    x = 2,004,044,221.35/66,757.17
  6. Step 6: Final answer
    x = 30,019.91

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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.