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Finding the Fourth Proportional to 72,754.80, 109,095.26 and 33,278.08

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Solution

The fourth proportional to 72,754.80, 109,095.26 and 33,278.08 is: 49,900.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,754.80 : 109,095.26 = 33,278.08 : x
  2. Step 2: Convert to fraction form
    72,754.80/109,095.26 = 33,278.08/x
  3. Step 3: Cross multiply
    72,754.80x = 109,095.26 × 33,278.08
  4. Step 4: Simplify right side
    72,754.80x = 3,630,480,789.90
  5. Step 5: Solve for x
    x = 3,630,480,789.90/72,754.80
  6. Step 6: Final answer
    x = 49,900.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.