Home / 48,410.72-72,644.50-20,328.61

Finding the Fourth Proportional to 48,410.72, 72,644.50 and 20,328.61

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Solution

The fourth proportional to 48,410.72, 72,644.50 and 20,328.61 is: 30,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,410.72 : 72,644.50 = 20,328.61 : x
  2. Step 2: Convert to fraction form
    48,410.72/72,644.50 = 20,328.61/x
  3. Step 3: Cross multiply
    48,410.72x = 72,644.50 × 20,328.61
  4. Step 4: Simplify right side
    48,410.72x = 1,476,761,709.15
  5. Step 5: Solve for x
    x = 1,476,761,709.15/48,410.72
  6. Step 6: Final answer
    x = 30,504.85

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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.