Home / 51,719.22-77,579.09-20,554.56

Finding the Fourth Proportional to 51,719.22, 77,579.09 and 20,554.56

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Solution

The fourth proportional to 51,719.22, 77,579.09 and 20,554.56 is: 30,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.22 : 77,579.09 = 20,554.56 : x
  2. Step 2: Convert to fraction form
    51,719.22/77,579.09 = 20,554.56/x
  3. Step 3: Cross multiply
    51,719.22x = 77,579.09 × 20,554.56
  4. Step 4: Simplify right side
    51,719.22x = 1,594,604,060.15
  5. Step 5: Solve for x
    x = 1,594,604,060.15/51,719.22
  6. Step 6: Final answer
    x = 30,831.94

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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.