Home / 70,764.78-106,148.24-18,173.10

Finding the Fourth Proportional to 70,764.78, 106,148.24 and 18,173.10

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Solution

The fourth proportional to 70,764.78, 106,148.24 and 18,173.10 is: 27,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,764.78 : 106,148.24 = 18,173.10 : x
  2. Step 2: Convert to fraction form
    70,764.78/106,148.24 = 18,173.10/x
  3. Step 3: Cross multiply
    70,764.78x = 106,148.24 × 18,173.10
  4. Step 4: Simplify right side
    70,764.78x = 1,929,042,489.48
  5. Step 5: Solve for x
    x = 1,929,042,489.48/70,764.78
  6. Step 6: Final answer
    x = 27,259.92

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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.