Home / 55,145.25-82,586.25-31,722.48

Finding the Fourth Proportional to 55,145.25, 82,586.25 and 31,722.48

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Solution

The fourth proportional to 55,145.25, 82,586.25 and 31,722.48 is: 47,508.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,145.25 : 82,586.25 = 31,722.48 : x
  2. Step 2: Convert to fraction form
    55,145.25/82,586.25 = 31,722.48/x
  3. Step 3: Cross multiply
    55,145.25x = 82,586.25 × 31,722.48
  4. Step 4: Simplify right side
    55,145.25x = 2,619,840,663.90
  5. Step 5: Solve for x
    x = 2,619,840,663.90/55,145.25
  6. Step 6: Final answer
    x = 47,508.00

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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.