Home / 88,638.68-132,645.90-55,374.42

Finding the Fourth Proportional to 88,638.68, 132,645.90 and 55,374.42

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Solution

The fourth proportional to 88,638.68, 132,645.90 and 55,374.42 is: 82,866.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,638.68 : 132,645.90 = 55,374.42 : x
  2. Step 2: Convert to fraction form
    88,638.68/132,645.90 = 55,374.42/x
  3. Step 3: Cross multiply
    88,638.68x = 132,645.90 × 55,374.42
  4. Step 4: Simplify right side
    88,638.68x = 7,345,189,777.88
  5. Step 5: Solve for x
    x = 7,345,189,777.88/88,638.68
  6. Step 6: Final answer
    x = 82,866.64

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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.