Home / 83,571.19-115,336.13-47,754.25

Finding the Fourth Proportional to 83,571.19, 115,336.13 and 47,754.25

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Solution

The fourth proportional to 83,571.19, 115,336.13 and 47,754.25 is: 65,905.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,571.19 : 115,336.13 = 47,754.25 : x
  2. Step 2: Convert to fraction form
    83,571.19/115,336.13 = 47,754.25/x
  3. Step 3: Cross multiply
    83,571.19x = 115,336.13 × 47,754.25
  4. Step 4: Simplify right side
    83,571.19x = 5,507,790,386.05
  5. Step 5: Solve for x
    x = 5,507,790,386.05/83,571.19
  6. Step 6: Final answer
    x = 65,905.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.