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Finding the Fourth Proportional to 48,165.20, 72,247.80 and 33,390.80

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Solution

The fourth proportional to 48,165.20, 72,247.80 and 33,390.80 is: 50,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,165.20 : 72,247.80 = 33,390.80 : x
  2. Step 2: Convert to fraction form
    48,165.20/72,247.80 = 33,390.80/x
  3. Step 3: Cross multiply
    48,165.20x = 72,247.80 × 33,390.80
  4. Step 4: Simplify right side
    48,165.20x = 2,412,411,840.24
  5. Step 5: Solve for x
    x = 2,412,411,840.24/48,165.20
  6. Step 6: Final answer
    x = 50,086.20

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