Home / 49,917.92-74,856.08-20,315.66

Finding the Fourth Proportional to 49,917.92, 74,856.08 and 20,315.66

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Solution

The fourth proportional to 49,917.92, 74,856.08 and 20,315.66 is: 30,465.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,917.92 : 74,856.08 = 20,315.66 : x
  2. Step 2: Convert to fraction form
    49,917.92/74,856.08 = 20,315.66/x
  3. Step 3: Cross multiply
    49,917.92x = 74,856.08 × 20,315.66
  4. Step 4: Simplify right side
    49,917.92x = 1,520,750,194.35
  5. Step 5: Solve for x
    x = 1,520,750,194.35/49,917.92
  6. Step 6: Final answer
    x = 30,465.02

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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.