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Finding the Fourth Proportional to 50,802, 70,104.60 and 28,140.90

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Solution

The fourth proportional to 50,802, 70,104.60 and 28,140.90 is: 38,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,802 : 70,104.60 = 28,140.90 : x
  2. Step 2: Convert to fraction form
    50,802/70,104.60 = 28,140.90/x
  3. Step 3: Cross multiply
    50,802x = 70,104.60 × 28,140.90
  4. Step 4: Simplify right side
    50,802x = 1,972,806,538.14
  5. Step 5: Solve for x
    x = 1,972,806,538.14/50,802
  6. Step 6: Final answer
    x = 38,833.25

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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.