Home / 55,144.40-82,650.98-31,721.63

Finding the Fourth Proportional to 55,144.40, 82,650.98 and 31,721.63

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Solution

The fourth proportional to 55,144.40, 82,650.98 and 31,721.63 is: 47,544.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,144.40 : 82,650.98 = 31,721.63 : x
  2. Step 2: Convert to fraction form
    55,144.40/82,650.98 = 31,721.63/x
  3. Step 3: Cross multiply
    55,144.40x = 82,650.98 × 31,721.63
  4. Step 4: Simplify right side
    55,144.40x = 2,621,823,472.75
  5. Step 5: Solve for x
    x = 2,621,823,472.75/55,144.40
  6. Step 6: Final answer
    x = 47,544.70

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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.