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Finding the Fourth Proportional to 50,487.80, 75,735.30 and 15,427.40

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Solution

The fourth proportional to 50,487.80, 75,735.30 and 15,427.40 is: 23,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,487.80 : 75,735.30 = 15,427.40 : x
  2. Step 2: Convert to fraction form
    50,487.80/75,735.30 = 15,427.40/x
  3. Step 3: Cross multiply
    50,487.80x = 75,735.30 × 15,427.40
  4. Step 4: Simplify right side
    50,487.80x = 1,168,398,767.22
  5. Step 5: Solve for x
    x = 1,168,398,767.22/50,487.80
  6. Step 6: Final answer
    x = 23,142.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.