Home / 86,087.57-129,138.78-23,758.07

Finding the Fourth Proportional to 86,087.57, 129,138.78 and 23,758.07

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Solution

The fourth proportional to 86,087.57, 129,138.78 and 23,758.07 is: 35,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,087.57 : 129,138.78 = 23,758.07 : x
  2. Step 2: Convert to fraction form
    86,087.57/129,138.78 = 23,758.07/x
  3. Step 3: Cross multiply
    86,087.57x = 129,138.78 × 23,758.07
  4. Step 4: Simplify right side
    86,087.57x = 3,068,087,529.26
  5. Step 5: Solve for x
    x = 3,068,087,529.26/86,087.57
  6. Step 6: Final answer
    x = 35,639.15

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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.