Home / 48,349.62-72,519-18,788.70

Finding the Fourth Proportional to 48,349.62, 72,519 and 18,788.70

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Solution

The fourth proportional to 48,349.62, 72,519 and 18,788.70 is: 28,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,349.62 : 72,519 = 18,788.70 : x
  2. Step 2: Convert to fraction form
    48,349.62/72,519 = 18,788.70/x
  3. Step 3: Cross multiply
    48,349.62x = 72,519 × 18,788.70
  4. Step 4: Simplify right side
    48,349.62x = 1,362,537,735.30
  5. Step 5: Solve for x
    x = 1,362,537,735.30/48,349.62
  6. Step 6: Final answer
    x = 28,180.94

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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.