Home / 66,688.12-100,031.64-27,217.54

Finding the Fourth Proportional to 66,688.12, 100,031.64 and 27,217.54

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Solution

The fourth proportional to 66,688.12, 100,031.64 and 27,217.54 is: 40,826.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,688.12 : 100,031.64 = 27,217.54 : x
  2. Step 2: Convert to fraction form
    66,688.12/100,031.64 = 27,217.54/x
  3. Step 3: Cross multiply
    66,688.12x = 100,031.64 × 27,217.54
  4. Step 4: Simplify right side
    66,688.12x = 2,722,615,162.97
  5. Step 5: Solve for x
    x = 2,722,615,162.97/66,688.12
  6. Step 6: Final answer
    x = 40,826.09

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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.