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Finding the Fourth Proportional to 63,996.87, 88,339.77 and 55,008.30

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Solution

The fourth proportional to 63,996.87, 88,339.77 and 55,008.30 is: 75,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,996.87 : 88,339.77 = 55,008.30 : x
  2. Step 2: Convert to fraction form
    63,996.87/88,339.77 = 55,008.30/x
  3. Step 3: Cross multiply
    63,996.87x = 88,339.77 × 55,008.30
  4. Step 4: Simplify right side
    63,996.87x = 4,859,420,570.09
  5. Step 5: Solve for x
    x = 4,859,420,570.09/63,996.87
  6. Step 6: Final answer
    x = 75,932.16

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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.