Home / 86,560.35-129,847.97-30,395.64

Finding the Fourth Proportional to 86,560.35, 129,847.97 and 30,395.64

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Solution

The fourth proportional to 86,560.35, 129,847.97 and 30,395.64 is: 45,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,560.35 : 129,847.97 = 30,395.64 : x
  2. Step 2: Convert to fraction form
    86,560.35/129,847.97 = 30,395.64/x
  3. Step 3: Cross multiply
    86,560.35x = 129,847.97 × 30,395.64
  4. Step 4: Simplify right side
    86,560.35x = 3,946,812,150.85
  5. Step 5: Solve for x
    x = 3,946,812,150.85/86,560.35
  6. Step 6: Final answer
    x = 45,596.07

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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.