Home / 54,623.72-81,858.78-31,215.08

Finding the Fourth Proportional to 54,623.72, 81,858.78 and 31,215.08

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Solution

The fourth proportional to 54,623.72, 81,858.78 and 31,215.08 is: 46,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,623.72 : 81,858.78 = 31,215.08 : x
  2. Step 2: Convert to fraction form
    54,623.72/81,858.78 = 31,215.08/x
  3. Step 3: Cross multiply
    54,623.72x = 81,858.78 × 31,215.08
  4. Step 4: Simplify right side
    54,623.72x = 2,555,228,366.40
  5. Step 5: Solve for x
    x = 2,555,228,366.40/54,623.72
  6. Step 6: Final answer
    x = 46,778.73

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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.