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Finding the Fourth Proportional to 63,290.62, 87,261.67 and 40,589.56

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Solution

The fourth proportional to 63,290.62, 87,261.67 and 40,589.56 is: 55,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,290.62 : 87,261.67 = 40,589.56 : x
  2. Step 2: Convert to fraction form
    63,290.62/87,261.67 = 40,589.56/x
  3. Step 3: Cross multiply
    63,290.62x = 87,261.67 × 40,589.56
  4. Step 4: Simplify right side
    63,290.62x = 3,541,912,790.17
  5. Step 5: Solve for x
    x = 3,541,912,790.17/63,290.62
  6. Step 6: Final answer
    x = 55,962.68

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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.