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Finding the Fourth Proportional to 66,080.98, 91,165.80 and 37,771.48

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Solution

The fourth proportional to 66,080.98, 91,165.80 and 37,771.48 is: 52,109.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,080.98 : 91,165.80 = 37,771.48 : x
  2. Step 2: Convert to fraction form
    66,080.98/91,165.80 = 37,771.48/x
  3. Step 3: Cross multiply
    66,080.98x = 91,165.80 × 37,771.48
  4. Step 4: Simplify right side
    66,080.98x = 3,443,467,191.38
  5. Step 5: Solve for x
    x = 3,443,467,191.38/66,080.98
  6. Step 6: Final answer
    x = 52,109.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.