Home / 86,086.23-129,055.39-29,919.04

Finding the Fourth Proportional to 86,086.23, 129,055.39 and 29,919.04

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Solution

The fourth proportional to 86,086.23, 129,055.39 and 29,919.04 is: 44,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,086.23 : 129,055.39 = 29,919.04 : x
  2. Step 2: Convert to fraction form
    86,086.23/129,055.39 = 29,919.04/x
  3. Step 3: Cross multiply
    86,086.23x = 129,055.39 × 29,919.04
  4. Step 4: Simplify right side
    86,086.23x = 3,861,213,704.13
  5. Step 5: Solve for x
    x = 3,861,213,704.13/86,086.23
  6. Step 6: Final answer
    x = 44,852.86

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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.