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Finding the Fourth Proportional to 73,219.50, 109,919.02 and 48,280.40

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Solution

The fourth proportional to 73,219.50, 109,919.02 and 48,280.40 is: 72,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,219.50 : 109,919.02 = 48,280.40 : x
  2. Step 2: Convert to fraction form
    73,219.50/109,919.02 = 48,280.40/x
  3. Step 3: Cross multiply
    73,219.50x = 109,919.02 × 48,280.40
  4. Step 4: Simplify right side
    73,219.50x = 5,306,934,253.21
  5. Step 5: Solve for x
    x = 5,306,934,253.21/73,219.50
  6. Step 6: Final answer
    x = 72,479.79

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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.