Home / 50,920.92-70,270.20-28,260

Finding the Fourth Proportional to 50,920.92, 70,270.20 and 28,260

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Solution

The fourth proportional to 50,920.92, 70,270.20 and 28,260 is: 38,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,920.92 : 70,270.20 = 28,260 : x
  2. Step 2: Convert to fraction form
    50,920.92/70,270.20 = 28,260/x
  3. Step 3: Cross multiply
    50,920.92x = 70,270.20 × 28,260
  4. Step 4: Simplify right side
    50,920.92x = 1,985,835,852
  5. Step 5: Solve for x
    x = 1,985,835,852/50,920.92
  6. Step 6: Final answer
    x = 38,998.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.