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Finding the Fourth Proportional to 50,800.62, 70,101.78 and 28,138.29

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Solution

The fourth proportional to 50,800.62, 70,101.78 and 28,138.29 is: 38,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,800.62 : 70,101.78 = 28,138.29 : x
  2. Step 2: Convert to fraction form
    50,800.62/70,101.78 = 28,138.29/x
  3. Step 3: Cross multiply
    50,800.62x = 70,101.78 × 28,138.29
  4. Step 4: Simplify right side
    50,800.62x = 1,972,544,215.16
  5. Step 5: Solve for x
    x = 1,972,544,215.16/50,800.62
  6. Step 6: Final answer
    x = 38,829.14

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1.5x scale

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.