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Finding the Fourth Proportional to 62,773.44, 86,630.40 and 38,912.64

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Solution

The fourth proportional to 62,773.44, 86,630.40 and 38,912.64 is: 53,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,773.44 : 86,630.40 = 38,912.64 : x
  2. Step 2: Convert to fraction form
    62,773.44/86,630.40 = 38,912.64/x
  3. Step 3: Cross multiply
    62,773.44x = 86,630.40 × 38,912.64
  4. Step 4: Simplify right side
    62,773.44x = 3,371,017,568.26
  5. Step 5: Solve for x
    x = 3,371,017,568.26/62,773.44
  6. Step 6: Final answer
    x = 53,701.34

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1.5x scale

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.