Home / 86,459.20-129,700.14-33,861.85

Finding the Fourth Proportional to 86,459.20, 129,700.14 and 33,861.85

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Solution

The fourth proportional to 86,459.20, 129,700.14 and 33,861.85 is: 50,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,459.20 : 129,700.14 = 33,861.85 : x
  2. Step 2: Convert to fraction form
    86,459.20/129,700.14 = 33,861.85/x
  3. Step 3: Cross multiply
    86,459.20x = 129,700.14 × 33,861.85
  4. Step 4: Simplify right side
    86,459.20x = 4,391,886,685.66
  5. Step 5: Solve for x
    x = 4,391,886,685.66/86,459.20
  6. Step 6: Final answer
    x = 50,797.22

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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.