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Finding the Fourth Proportional to 63,357.80, 87,408.84 and 40,693.62

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Solution

The fourth proportional to 63,357.80, 87,408.84 and 40,693.62 is: 56,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,357.80 : 87,408.84 = 40,693.62 : x
  2. Step 2: Convert to fraction form
    63,357.80/87,408.84 = 40,693.62/x
  3. Step 3: Cross multiply
    63,357.80x = 87,408.84 × 40,693.62
  4. Step 4: Simplify right side
    63,357.80x = 3,556,982,119.60
  5. Step 5: Solve for x
    x = 3,556,982,119.60/63,357.80
  6. Step 6: Final answer
    x = 56,141.19

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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.