Home / 48,982.68-73,479.15-20,905.72

Finding the Fourth Proportional to 48,982.68, 73,479.15 and 20,905.72

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Solution

The fourth proportional to 48,982.68, 73,479.15 and 20,905.72 is: 31,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,982.68 : 73,479.15 = 20,905.72 : x
  2. Step 2: Convert to fraction form
    48,982.68/73,479.15 = 20,905.72/x
  3. Step 3: Cross multiply
    48,982.68x = 73,479.15 × 20,905.72
  4. Step 4: Simplify right side
    48,982.68x = 1,536,134,352.04
  5. Step 5: Solve for x
    x = 1,536,134,352.04/48,982.68
  6. Step 6: Final answer
    x = 31,360.77

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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.