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Finding the Fourth Proportional to 50,788.70, 70,083.06 and 28,127.09

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Solution

The fourth proportional to 50,788.70, 70,083.06 and 28,127.09 is: 38,812.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,788.70 : 70,083.06 = 28,127.09 : x
  2. Step 2: Convert to fraction form
    50,788.70/70,083.06 = 28,127.09/x
  3. Step 3: Cross multiply
    50,788.70x = 70,083.06 × 28,127.09
  4. Step 4: Simplify right side
    50,788.70x = 1,971,232,185.68
  5. Step 5: Solve for x
    x = 1,971,232,185.68/50,788.70
  6. Step 6: Final answer
    x = 38,812.42

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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.