Home / 86,365.43-129,552.78-27,205.73

Finding the Fourth Proportional to 86,365.43, 129,552.78 and 27,205.73

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Solution

The fourth proportional to 86,365.43, 129,552.78 and 27,205.73 is: 40,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,365.43 : 129,552.78 = 27,205.73 : x
  2. Step 2: Convert to fraction form
    86,365.43/129,552.78 = 27,205.73/x
  3. Step 3: Cross multiply
    86,365.43x = 129,552.78 × 27,205.73
  4. Step 4: Simplify right side
    86,365.43x = 3,524,577,893.51
  5. Step 5: Solve for x
    x = 3,524,577,893.51/86,365.43
  6. Step 6: Final answer
    x = 40,810.05

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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.