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Finding the Fourth Proportional to 72,754.30, 100,393.77 and 40,922.52

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Solution

The fourth proportional to 72,754.30, 100,393.77 and 40,922.52 is: 56,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,754.30 : 100,393.77 = 40,922.52 : x
  2. Step 2: Convert to fraction form
    72,754.30/100,393.77 = 40,922.52/x
  3. Step 3: Cross multiply
    72,754.30x = 100,393.77 × 40,922.52
  4. Step 4: Simplify right side
    72,754.30x = 4,108,366,060.70
  5. Step 5: Solve for x
    x = 4,108,366,060.70/72,754.30
  6. Step 6: Final answer
    x = 56,469.05

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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.