Home / 69,662.15-96,163.18-47,031.78

Finding the Fourth Proportional to 69,662.15, 96,163.18 and 47,031.78

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Solution

The fourth proportional to 69,662.15, 96,163.18 and 47,031.78 is: 64,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,662.15 : 96,163.18 = 47,031.78 : x
  2. Step 2: Convert to fraction form
    69,662.15/96,163.18 = 47,031.78/x
  3. Step 3: Cross multiply
    69,662.15x = 96,163.18 × 47,031.78
  4. Step 4: Simplify right side
    69,662.15x = 4,522,725,408.28
  5. Step 5: Solve for x
    x = 4,522,725,408.28/69,662.15
  6. Step 6: Final answer
    x = 64,923.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.