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Finding the Fourth Proportional to 66,606.88, 91,827.42 and 52,282

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Solution

The fourth proportional to 66,606.88, 91,827.42 and 52,282 is: 72,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,606.88 : 91,827.42 = 52,282 : x
  2. Step 2: Convert to fraction form
    66,606.88/91,827.42 = 52,282/x
  3. Step 3: Cross multiply
    66,606.88x = 91,827.42 × 52,282
  4. Step 4: Simplify right side
    66,606.88x = 4,800,921,172.44
  5. Step 5: Solve for x
    x = 4,800,921,172.44/66,606.88
  6. Step 6: Final answer
    x = 72,078.46

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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.