Home / 51,188.43-76,782.66-20,001.81

Finding the Fourth Proportional to 51,188.43, 76,782.66 and 20,001.81

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Solution

The fourth proportional to 51,188.43, 76,782.66 and 20,001.81 is: 30,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,188.43 : 76,782.66 = 20,001.81 : x
  2. Step 2: Convert to fraction form
    51,188.43/76,782.66 = 20,001.81/x
  3. Step 3: Cross multiply
    51,188.43x = 76,782.66 × 20,001.81
  4. Step 4: Simplify right side
    51,188.43x = 1,535,792,176.61
  5. Step 5: Solve for x
    x = 1,535,792,176.61/51,188.43
  6. Step 6: Final answer
    x = 30,002.72

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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.