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Finding the Fourth Proportional to 63,886.74, 88,163.83 and 38,393.49

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Solution

The fourth proportional to 63,886.74, 88,163.83 and 38,393.49 is: 52,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,886.74 : 88,163.83 = 38,393.49 : x
  2. Step 2: Convert to fraction form
    63,886.74/88,163.83 = 38,393.49/x
  3. Step 3: Cross multiply
    63,886.74x = 88,163.83 × 38,393.49
  4. Step 4: Simplify right side
    63,886.74x = 3,384,917,288.11
  5. Step 5: Solve for x
    x = 3,384,917,288.11/63,886.74
  6. Step 6: Final answer
    x = 52,983.10

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1.5x scale

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.