Home / 65,819.10-98,751.69-19,074.78

Finding the Fourth Proportional to 65,819.10, 98,751.69 and 19,074.78

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Solution

The fourth proportional to 65,819.10, 98,751.69 and 19,074.78 is: 28,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,819.10 : 98,751.69 = 19,074.78 : x
  2. Step 2: Convert to fraction form
    65,819.10/98,751.69 = 19,074.78/x
  3. Step 3: Cross multiply
    65,819.10x = 98,751.69 × 19,074.78
  4. Step 4: Simplify right side
    65,819.10x = 1,883,666,761.38
  5. Step 5: Solve for x
    x = 1,883,666,761.38/65,819.10
  6. Step 6: Final answer
    x = 28,618.85

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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.