Home / 86,149.26-129,230.91-23,819.76

Finding the Fourth Proportional to 86,149.26, 129,230.91 and 23,819.76

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Solution

The fourth proportional to 86,149.26, 129,230.91 and 23,819.76 is: 35,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,149.26 : 129,230.91 = 23,819.76 : x
  2. Step 2: Convert to fraction form
    86,149.26/129,230.91 = 23,819.76/x
  3. Step 3: Cross multiply
    86,149.26x = 129,230.91 × 23,819.76
  4. Step 4: Simplify right side
    86,149.26x = 3,078,249,260.78
  5. Step 5: Solve for x
    x = 3,078,249,260.78/86,149.26
  6. Step 6: Final answer
    x = 35,731.58

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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.