Home / 86,563.28-129,831.89-27,391.25

Finding the Fourth Proportional to 86,563.28, 129,831.89 and 27,391.25

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Solution

The fourth proportional to 86,563.28, 129,831.89 and 27,391.25 is: 41,082.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,563.28 : 129,831.89 = 27,391.25 : x
  2. Step 2: Convert to fraction form
    86,563.28/129,831.89 = 27,391.25/x
  3. Step 3: Cross multiply
    86,563.28x = 129,831.89 × 27,391.25
  4. Step 4: Simplify right side
    86,563.28x = 3,556,256,970.85
  5. Step 5: Solve for x
    x = 3,556,256,970.85/86,563.28
  6. Step 6: Final answer
    x = 41,082.75

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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.