Home / 67,154.63-100,738.25-19,769.72

Finding the Fourth Proportional to 67,154.63, 100,738.25 and 19,769.72

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Solution

The fourth proportional to 67,154.63, 100,738.25 and 19,769.72 is: 29,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,154.63 : 100,738.25 = 19,769.72 : x
  2. Step 2: Convert to fraction form
    67,154.63/100,738.25 = 19,769.72/x
  3. Step 3: Cross multiply
    67,154.63x = 100,738.25 × 19,769.72
  4. Step 4: Simplify right side
    67,154.63x = 1,991,566,896.94
  5. Step 5: Solve for x
    x = 1,991,566,896.94/67,154.63
  6. Step 6: Final answer
    x = 29,656.43

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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.