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Finding the Fourth Proportional to 85,900.32, 118,548.36 and 48,177

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Solution

The fourth proportional to 85,900.32, 118,548.36 and 48,177 is: 66,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,900.32 : 118,548.36 = 48,177 : x
  2. Step 2: Convert to fraction form
    85,900.32/118,548.36 = 48,177/x
  3. Step 3: Cross multiply
    85,900.32x = 118,548.36 × 48,177
  4. Step 4: Simplify right side
    85,900.32x = 5,711,304,339.72
  5. Step 5: Solve for x
    x = 5,711,304,339.72/85,900.32
  6. Step 6: Final answer
    x = 66,487.58

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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.