Home / 54,435.24-81,631.86-21,150.92

Finding the Fourth Proportional to 54,435.24, 81,631.86 and 21,150.92

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Solution

The fourth proportional to 54,435.24, 81,631.86 and 21,150.92 is: 31,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,435.24 : 81,631.86 = 21,150.92 : x
  2. Step 2: Convert to fraction form
    54,435.24/81,631.86 = 21,150.92/x
  3. Step 3: Cross multiply
    54,435.24x = 81,631.86 × 21,150.92
  4. Step 4: Simplify right side
    54,435.24x = 1,726,588,940.31
  5. Step 5: Solve for x
    x = 1,726,588,940.31/54,435.24
  6. Step 6: Final answer
    x = 31,718.22

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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.