Home / 53,386.31-80,086.82-18,321.41

Finding the Fourth Proportional to 53,386.31, 80,086.82 and 18,321.41

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Solution

The fourth proportional to 53,386.31, 80,086.82 and 18,321.41 is: 27,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,386.31 : 80,086.82 = 18,321.41 : x
  2. Step 2: Convert to fraction form
    53,386.31/80,086.82 = 18,321.41/x
  3. Step 3: Cross multiply
    53,386.31x = 80,086.82 × 18,321.41
  4. Step 4: Simplify right side
    53,386.31x = 1,467,302,972.78
  5. Step 5: Solve for x
    x = 1,467,302,972.78/53,386.31
  6. Step 6: Final answer
    x = 27,484.63

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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.