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Finding the Fourth Proportional to 66,168.52, 91,316.64 and 37,873.60

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Solution

The fourth proportional to 66,168.52, 91,316.64 and 37,873.60 is: 52,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,168.52 : 91,316.64 = 37,873.60 : x
  2. Step 2: Convert to fraction form
    66,168.52/91,316.64 = 37,873.60/x
  3. Step 3: Cross multiply
    66,168.52x = 91,316.64 × 37,873.60
  4. Step 4: Simplify right side
    66,168.52x = 3,458,489,896.70
  5. Step 5: Solve for x
    x = 3,458,489,896.70/66,168.52
  6. Step 6: Final answer
    x = 52,267.90

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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.