Home / 86,933.45-130,400.18-47,469.04

Finding the Fourth Proportional to 86,933.45, 130,400.18 and 47,469.04

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Solution

The fourth proportional to 86,933.45, 130,400.18 and 47,469.04 is: 71,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933.45 : 130,400.18 = 47,469.04 : x
  2. Step 2: Convert to fraction form
    86,933.45/130,400.18 = 47,469.04/x
  3. Step 3: Cross multiply
    86,933.45x = 130,400.18 × 47,469.04
  4. Step 4: Simplify right side
    86,933.45x = 6,189,970,797.08
  5. Step 5: Solve for x
    x = 6,189,970,797.08/86,933.45
  6. Step 6: Final answer
    x = 71,203.55

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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.