Home / 48,355.26-72,529.46-12,815.79

Finding the Fourth Proportional to 48,355.26, 72,529.46 and 12,815.79

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Solution

The fourth proportional to 48,355.26, 72,529.46 and 12,815.79 is: 19,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,355.26 : 72,529.46 = 12,815.79 : x
  2. Step 2: Convert to fraction form
    48,355.26/72,529.46 = 12,815.79/x
  3. Step 3: Cross multiply
    48,355.26x = 72,529.46 × 12,815.79
  4. Step 4: Simplify right side
    48,355.26x = 929,522,652.14
  5. Step 5: Solve for x
    x = 929,522,652.14/48,355.26
  6. Step 6: Final answer
    x = 19,222.78

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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.