Home / 88,031.56-131,988.92-31,864.32

Finding the Fourth Proportional to 88,031.56, 131,988.92 and 31,864.32

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Solution

The fourth proportional to 88,031.56, 131,988.92 and 31,864.32 is: 47,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,031.56 : 131,988.92 = 31,864.32 : x
  2. Step 2: Convert to fraction form
    88,031.56/131,988.92 = 31,864.32/x
  3. Step 3: Cross multiply
    88,031.56x = 131,988.92 × 31,864.32
  4. Step 4: Simplify right side
    88,031.56x = 4,205,737,183.33
  5. Step 5: Solve for x
    x = 4,205,737,183.33/88,031.56
  6. Step 6: Final answer
    x = 47,775.33

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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.