Home / 51,105.43-76,652.10-13,668.40

Finding the Fourth Proportional to 51,105.43, 76,652.10 and 13,668.40

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Solution

The fourth proportional to 51,105.43, 76,652.10 and 13,668.40 is: 20,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,105.43 : 76,652.10 = 13,668.40 : x
  2. Step 2: Convert to fraction form
    51,105.43/76,652.10 = 13,668.40/x
  3. Step 3: Cross multiply
    51,105.43x = 76,652.10 × 13,668.40
  4. Step 4: Simplify right side
    51,105.43x = 1,047,711,112.04
  5. Step 5: Solve for x
    x = 1,047,711,112.04/51,105.43
  6. Step 6: Final answer
    x = 20,500.98

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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.