Home / 86,382.14-129,356.73-54,696.62

Finding the Fourth Proportional to 86,382.14, 129,356.73 and 54,696.62

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Solution

The fourth proportional to 86,382.14, 129,356.73 and 54,696.62 is: 81,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,382.14 : 129,356.73 = 54,696.62 : x
  2. Step 2: Convert to fraction form
    86,382.14/129,356.73 = 54,696.62/x
  3. Step 3: Cross multiply
    86,382.14x = 129,356.73 × 54,696.62
  4. Step 4: Simplify right side
    86,382.14x = 7,075,376,228.64
  5. Step 5: Solve for x
    x = 7,075,376,228.64/86,382.14
  6. Step 6: Final answer
    x = 81,907.86

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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.