Home / 73,260.10-109,910.76-20,670.04

Finding the Fourth Proportional to 73,260.10, 109,910.76 and 20,670.04

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Solution

The fourth proportional to 73,260.10, 109,910.76 and 20,670.04 is: 31,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,260.10 : 109,910.76 = 20,670.04 : x
  2. Step 2: Convert to fraction form
    73,260.10/109,910.76 = 20,670.04/x
  3. Step 3: Cross multiply
    73,260.10x = 109,910.76 × 20,670.04
  4. Step 4: Simplify right side
    73,260.10x = 2,271,859,805.63
  5. Step 5: Solve for x
    x = 2,271,859,805.63/73,260.10
  6. Step 6: Final answer
    x = 31,010.88

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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.