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Finding the Fourth Proportional to 63,310.48, 87,395.37 and 39,448.95

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Solution

The fourth proportional to 63,310.48, 87,395.37 and 39,448.95 is: 54,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,310.48 : 87,395.37 = 39,448.95 : x
  2. Step 2: Convert to fraction form
    63,310.48/87,395.37 = 39,448.95/x
  3. Step 3: Cross multiply
    63,310.48x = 87,395.37 × 39,448.95
  4. Step 4: Simplify right side
    63,310.48x = 3,447,655,581.36
  5. Step 5: Solve for x
    x = 3,447,655,581.36/63,310.48
  6. Step 6: Final answer
    x = 54,456.32

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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.