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Finding the Fourth Proportional to 50,489.72, 75,737.01 and 18,907.92

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Solution

The fourth proportional to 50,489.72, 75,737.01 and 18,907.92 is: 28,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,489.72 : 75,737.01 = 18,907.92 : x
  2. Step 2: Convert to fraction form
    50,489.72/75,737.01 = 18,907.92/x
  3. Step 3: Cross multiply
    50,489.72x = 75,737.01 × 18,907.92
  4. Step 4: Simplify right side
    50,489.72x = 1,432,029,326.12
  5. Step 5: Solve for x
    x = 1,432,029,326.12/50,489.72
  6. Step 6: Final answer
    x = 28,362.79

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1.5x scale

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.