Home / 53,905.10-80,748.30-30,504.20

Finding the Fourth Proportional to 53,905.10, 80,748.30 and 30,504.20

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Solution

The fourth proportional to 53,905.10, 80,748.30 and 30,504.20 is: 45,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,905.10 : 80,748.30 = 30,504.20 : x
  2. Step 2: Convert to fraction form
    53,905.10/80,748.30 = 30,504.20/x
  3. Step 3: Cross multiply
    53,905.10x = 80,748.30 × 30,504.20
  4. Step 4: Simplify right side
    53,905.10x = 2,463,162,292.86
  5. Step 5: Solve for x
    x = 2,463,162,292.86/53,905.10
  6. Step 6: Final answer
    x = 45,694.42

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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.