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Finding the Fourth Proportional to 63,451.49, 87,602.87 and 40,829.79

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Solution

The fourth proportional to 63,451.49, 87,602.87 and 40,829.79 is: 56,370.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,451.49 : 87,602.87 = 40,829.79 : x
  2. Step 2: Convert to fraction form
    63,451.49/87,602.87 = 40,829.79/x
  3. Step 3: Cross multiply
    63,451.49x = 87,602.87 × 40,829.79
  4. Step 4: Simplify right side
    63,451.49x = 3,576,806,636.10
  5. Step 5: Solve for x
    x = 3,576,806,636.10/63,451.49
  6. Step 6: Final answer
    x = 56,370.73

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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.