Home / 88,081.12-132,121.20-21,521.62

Finding the Fourth Proportional to 88,081.12, 132,121.20 and 21,521.62

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Solution

The fourth proportional to 88,081.12, 132,121.20 and 21,521.62 is: 32,282.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,081.12 : 132,121.20 = 21,521.62 : x
  2. Step 2: Convert to fraction form
    88,081.12/132,121.20 = 21,521.62/x
  3. Step 3: Cross multiply
    88,081.12x = 132,121.20 × 21,521.62
  4. Step 4: Simplify right side
    88,081.12x = 2,843,462,260.34
  5. Step 5: Solve for x
    x = 2,843,462,260.34/88,081.12
  6. Step 6: Final answer
    x = 32,282.31

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1.5x scale

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.