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Finding the Fourth Proportional to 63,393.91, 87,483.63 and 39,520.68

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Solution

The fourth proportional to 63,393.91, 87,483.63 and 39,520.68 is: 54,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,393.91 : 87,483.63 = 39,520.68 : x
  2. Step 2: Convert to fraction form
    63,393.91/87,483.63 = 39,520.68/x
  3. Step 3: Cross multiply
    63,393.91x = 87,483.63 × 39,520.68
  4. Step 4: Simplify right side
    63,393.91x = 3,457,412,546.47
  5. Step 5: Solve for x
    x = 3,457,412,546.47/63,393.91
  6. Step 6: Final answer
    x = 54,538.56

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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.