Home / 53,433.20-80,207.40-30,105.20

Finding the Fourth Proportional to 53,433.20, 80,207.40 and 30,105.20

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Solution

The fourth proportional to 53,433.20, 80,207.40 and 30,105.20 is: 45,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,433.20 : 80,207.40 = 30,105.20 : x
  2. Step 2: Convert to fraction form
    53,433.20/80,207.40 = 30,105.20/x
  3. Step 3: Cross multiply
    53,433.20x = 80,207.40 × 30,105.20
  4. Step 4: Simplify right side
    53,433.20x = 2,414,659,818.48
  5. Step 5: Solve for x
    x = 2,414,659,818.48/53,433.20
  6. Step 6: Final answer
    x = 45,190.25

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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.