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Finding the Fourth Proportional to 63,682.56, 87,859.20 and 43,776

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Solution

The fourth proportional to 63,682.56, 87,859.20 and 43,776 is: 60,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,682.56 : 87,859.20 = 43,776 : x
  2. Step 2: Convert to fraction form
    63,682.56/87,859.20 = 43,776/x
  3. Step 3: Cross multiply
    63,682.56x = 87,859.20 × 43,776
  4. Step 4: Simplify right side
    63,682.56x = 3,846,124,339.20
  5. Step 5: Solve for x
    x = 3,846,124,339.20/63,682.56
  6. Step 6: Final answer
    x = 60,395.25

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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.