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Finding the Fourth Proportional to 48,396, 72,621.60 and 18,809.98

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Solution

The fourth proportional to 48,396, 72,621.60 and 18,809.98 is: 28,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,396 : 72,621.60 = 18,809.98 : x
  2. Step 2: Convert to fraction form
    48,396/72,621.60 = 18,809.98/x
  3. Step 3: Cross multiply
    48,396x = 72,621.60 × 18,809.98
  4. Step 4: Simplify right side
    48,396x = 1,366,010,843.57
  5. Step 5: Solve for x
    x = 1,366,010,843.57/48,396
  6. Step 6: Final answer
    x = 28,225.70

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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.