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Finding the Fourth Proportional to 50,203.80, 75,305.70 and 15,138.90

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Solution

The fourth proportional to 50,203.80, 75,305.70 and 15,138.90 is: 22,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,203.80 : 75,305.70 = 15,138.90 : x
  2. Step 2: Convert to fraction form
    50,203.80/75,305.70 = 15,138.90/x
  3. Step 3: Cross multiply
    50,203.80x = 75,305.70 × 15,138.90
  4. Step 4: Simplify right side
    50,203.80x = 1,140,045,461.73
  5. Step 5: Solve for x
    x = 1,140,045,461.73/50,203.80
  6. Step 6: Final answer
    x = 22,708.35

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1.5x scale

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.