Home / 54,660.92-75,432.32-30,788

Finding the Fourth Proportional to 54,660.92, 75,432.32 and 30,788

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Solution

The fourth proportional to 54,660.92, 75,432.32 and 30,788 is: 42,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,660.92 : 75,432.32 = 30,788 : x
  2. Step 2: Convert to fraction form
    54,660.92/75,432.32 = 30,788/x
  3. Step 3: Cross multiply
    54,660.92x = 75,432.32 × 30,788
  4. Step 4: Simplify right side
    54,660.92x = 2,322,410,268.16
  5. Step 5: Solve for x
    x = 2,322,410,268.16/54,660.92
  6. Step 6: Final answer
    x = 42,487.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.