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Finding the Fourth Proportional to 66,160.72, 99,252 and 30,657.52

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Solution

The fourth proportional to 66,160.72, 99,252 and 30,657.52 is: 45,991.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.72 : 99,252 = 30,657.52 : x
  2. Step 2: Convert to fraction form
    66,160.72/99,252 = 30,657.52/x
  3. Step 3: Cross multiply
    66,160.72x = 99,252 × 30,657.52
  4. Step 4: Simplify right side
    66,160.72x = 3,042,820,175.04
  5. Step 5: Solve for x
    x = 3,042,820,175.04/66,160.72
  6. Step 6: Final answer
    x = 45,991.34

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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.