Home / 47,719.43-71,579.07-12,180.75

Finding the Fourth Proportional to 47,719.43, 71,579.07 and 12,180.75

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Solution

The fourth proportional to 47,719.43, 71,579.07 and 12,180.75 is: 18,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,719.43 : 71,579.07 = 12,180.75 : x
  2. Step 2: Convert to fraction form
    47,719.43/71,579.07 = 12,180.75/x
  3. Step 3: Cross multiply
    47,719.43x = 71,579.07 × 12,180.75
  4. Step 4: Simplify right side
    47,719.43x = 871,886,668.37
  5. Step 5: Solve for x
    x = 871,886,668.37/47,719.43
  6. Step 6: Final answer
    x = 18,271.10

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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.