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Finding the Fourth Proportional to 62,871.60, 94,304.70 and 21,318.60

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Solution

The fourth proportional to 62,871.60, 94,304.70 and 21,318.60 is: 31,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,871.60 : 94,304.70 = 21,318.60 : x
  2. Step 2: Convert to fraction form
    62,871.60/94,304.70 = 21,318.60/x
  3. Step 3: Cross multiply
    62,871.60x = 94,304.70 × 21,318.60
  4. Step 4: Simplify right side
    62,871.60x = 2,010,444,177.42
  5. Step 5: Solve for x
    x = 2,010,444,177.42/62,871.60
  6. Step 6: Final answer
    x = 31,976.98

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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.