Home / 80,006.31-120,009.03-32,621.21

Finding the Fourth Proportional to 80,006.31, 120,009.03 and 32,621.21

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Solution

The fourth proportional to 80,006.31, 120,009.03 and 32,621.21 is: 48,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,006.31 : 120,009.03 = 32,621.21 : x
  2. Step 2: Convert to fraction form
    80,006.31/120,009.03 = 32,621.21/x
  3. Step 3: Cross multiply
    80,006.31x = 120,009.03 × 32,621.21
  4. Step 4: Simplify right side
    80,006.31x = 3,914,840,172.24
  5. Step 5: Solve for x
    x = 3,914,840,172.24/80,006.31
  6. Step 6: Final answer
    x = 48,931.64

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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.