Home / 86,276.28-129,414.39-39,529.14

Finding the Fourth Proportional to 86,276.28, 129,414.39 and 39,529.14

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Solution

The fourth proportional to 86,276.28, 129,414.39 and 39,529.14 is: 59,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,276.28 : 129,414.39 = 39,529.14 : x
  2. Step 2: Convert to fraction form
    86,276.28/129,414.39 = 39,529.14/x
  3. Step 3: Cross multiply
    86,276.28x = 129,414.39 × 39,529.14
  4. Step 4: Simplify right side
    86,276.28x = 5,115,639,540.32
  5. Step 5: Solve for x
    x = 5,115,639,540.32/86,276.28
  6. Step 6: Final answer
    x = 59,293.70

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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.