Home / 86,213.25-129,319.89-23,883.75

Finding the Fourth Proportional to 86,213.25, 129,319.89 and 23,883.75

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Solution

The fourth proportional to 86,213.25, 129,319.89 and 23,883.75 is: 35,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,213.25 : 129,319.89 = 23,883.75 : x
  2. Step 2: Convert to fraction form
    86,213.25/129,319.89 = 23,883.75/x
  3. Step 3: Cross multiply
    86,213.25x = 129,319.89 × 23,883.75
  4. Step 4: Simplify right side
    86,213.25x = 3,088,643,922.79
  5. Step 5: Solve for x
    x = 3,088,643,922.79/86,213.25
  6. Step 6: Final answer
    x = 35,825.63

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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.