Home / 86,525.14-129,867.90-53,310.10

Finding the Fourth Proportional to 86,525.14, 129,867.90 and 53,310.10

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Solution

The fourth proportional to 86,525.14, 129,867.90 and 53,310.10 is: 80,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,525.14 : 129,867.90 = 53,310.10 : x
  2. Step 2: Convert to fraction form
    86,525.14/129,867.90 = 53,310.10/x
  3. Step 3: Cross multiply
    86,525.14x = 129,867.90 × 53,310.10
  4. Step 4: Simplify right side
    86,525.14x = 6,923,270,735.79
  5. Step 5: Solve for x
    x = 6,923,270,735.79/86,525.14
  6. Step 6: Final answer
    x = 80,014.56

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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.