Home / 86,469.24-129,762.20-33,872.16

Finding the Fourth Proportional to 86,469.24, 129,762.20 and 33,872.16

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Solution

The fourth proportional to 86,469.24, 129,762.20 and 33,872.16 is: 50,831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,469.24 : 129,762.20 = 33,872.16 : x
  2. Step 2: Convert to fraction form
    86,469.24/129,762.20 = 33,872.16/x
  3. Step 3: Cross multiply
    86,469.24x = 129,762.20 × 33,872.16
  4. Step 4: Simplify right side
    86,469.24x = 4,395,326,000.35
  5. Step 5: Solve for x
    x = 4,395,326,000.35/86,469.24
  6. Step 6: Final answer
    x = 50,831.09

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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.