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Finding the Fourth Proportional to 50,799.87, 70,100.72 and 28,137.54

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Solution

The fourth proportional to 50,799.87, 70,100.72 and 28,137.54 is: 38,828.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,799.87 : 70,100.72 = 28,137.54 : x
  2. Step 2: Convert to fraction form
    50,799.87/70,100.72 = 28,137.54/x
  3. Step 3: Cross multiply
    50,799.87x = 70,100.72 × 28,137.54
  4. Step 4: Simplify right side
    50,799.87x = 1,972,461,672.34
  5. Step 5: Solve for x
    x = 1,972,461,672.34/50,799.87
  6. Step 6: Final answer
    x = 38,828.09

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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.