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Finding the Fourth Proportional to 50,801.70, 70,099.40 and 28,135.10

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Solution

The fourth proportional to 50,801.70, 70,099.40 and 28,135.10 is: 38,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,801.70 : 70,099.40 = 28,135.10 : x
  2. Step 2: Convert to fraction form
    50,801.70/70,099.40 = 28,135.10/x
  3. Step 3: Cross multiply
    50,801.70x = 70,099.40 × 28,135.10
  4. Step 4: Simplify right side
    50,801.70x = 1,972,253,348.78
  5. Step 5: Solve for x
    x = 1,972,253,348.78/50,801.70
  6. Step 6: Final answer
    x = 38,822.59

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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.