Home / 88,115.76-132,130.22-31,947.43

Finding the Fourth Proportional to 88,115.76, 132,130.22 and 31,947.43

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Solution

The fourth proportional to 88,115.76, 132,130.22 and 31,947.43 is: 47,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,115.76 : 132,130.22 = 31,947.43 : x
  2. Step 2: Convert to fraction form
    88,115.76/132,130.22 = 31,947.43/x
  3. Step 3: Cross multiply
    88,115.76x = 132,130.22 × 31,947.43
  4. Step 4: Simplify right side
    88,115.76x = 4,221,220,954.33
  5. Step 5: Solve for x
    x = 4,221,220,954.33/88,115.76
  6. Step 6: Final answer
    x = 47,905.40

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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.