Home / 48,469.46-72,690.08-18,880.70

Finding the Fourth Proportional to 48,469.46, 72,690.08 and 18,880.70

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Solution

The fourth proportional to 48,469.46, 72,690.08 and 18,880.70 is: 28,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,469.46 : 72,690.08 = 18,880.70 : x
  2. Step 2: Convert to fraction form
    48,469.46/72,690.08 = 18,880.70/x
  3. Step 3: Cross multiply
    48,469.46x = 72,690.08 × 18,880.70
  4. Step 4: Simplify right side
    48,469.46x = 1,372,439,593.46
  5. Step 5: Solve for x
    x = 1,372,439,593.46/48,469.46
  6. Step 6: Final answer
    x = 28,315.55

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Why These Related Problems?

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