Home / 86,585.14-129,897.39-27,424.50

Finding the Fourth Proportional to 86,585.14, 129,897.39 and 27,424.50

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Solution

The fourth proportional to 86,585.14, 129,897.39 and 27,424.50 is: 41,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,585.14 : 129,897.39 = 27,424.50 : x
  2. Step 2: Convert to fraction form
    86,585.14/129,897.39 = 27,424.50/x
  3. Step 3: Cross multiply
    86,585.14x = 129,897.39 × 27,424.50
  4. Step 4: Simplify right side
    86,585.14x = 3,562,370,972.06
  5. Step 5: Solve for x
    x = 3,562,370,972.06/86,585.14
  6. Step 6: Final answer
    x = 41,142.98

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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.