Home / 86,085.19-129,135.21-23,755.69

Finding the Fourth Proportional to 86,085.19, 129,135.21 and 23,755.69

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Solution

The fourth proportional to 86,085.19, 129,135.21 and 23,755.69 is: 35,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,085.19 : 129,135.21 = 23,755.69 : x
  2. Step 2: Convert to fraction form
    86,085.19/129,135.21 = 23,755.69/x
  3. Step 3: Cross multiply
    86,085.19x = 129,135.21 × 23,755.69
  4. Step 4: Simplify right side
    86,085.19x = 3,067,696,016.84
  5. Step 5: Solve for x
    x = 3,067,696,016.84/86,085.19
  6. Step 6: Final answer
    x = 35,635.58

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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.