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Finding the Fourth Proportional to 48,240.12, 72,357.95 and 13,179.68

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Solution

The fourth proportional to 48,240.12, 72,357.95 and 13,179.68 is: 19,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,240.12 : 72,357.95 = 13,179.68 : x
  2. Step 2: Convert to fraction form
    48,240.12/72,357.95 = 13,179.68/x
  3. Step 3: Cross multiply
    48,240.12x = 72,357.95 × 13,179.68
  4. Step 4: Simplify right side
    48,240.12x = 953,654,198.77
  5. Step 5: Solve for x
    x = 953,654,198.77/48,240.12
  6. Step 6: Final answer
    x = 19,768.90

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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.