Home / 86,331.40-129,517.14-27,165.54

Finding the Fourth Proportional to 86,331.40, 129,517.14 and 27,165.54

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Solution

The fourth proportional to 86,331.40, 129,517.14 and 27,165.54 is: 40,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,331.40 : 129,517.14 = 27,165.54 : x
  2. Step 2: Convert to fraction form
    86,331.40/129,517.14 = 27,165.54/x
  3. Step 3: Cross multiply
    86,331.40x = 129,517.14 × 27,165.54
  4. Step 4: Simplify right side
    86,331.40x = 3,518,402,263.94
  5. Step 5: Solve for x
    x = 3,518,402,263.94/86,331.40
  6. Step 6: Final answer
    x = 40,754.61

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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.