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Finding the Fourth Proportional to 83,571.92, 115,323.18 and 49,578.92

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Solution

The fourth proportional to 83,571.92, 115,323.18 and 49,578.92 is: 68,415.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,571.92 : 115,323.18 = 49,578.92 : x
  2. Step 2: Convert to fraction form
    83,571.92/115,323.18 = 49,578.92/x
  3. Step 3: Cross multiply
    83,571.92x = 115,323.18 × 49,578.92
  4. Step 4: Simplify right side
    83,571.92x = 5,717,598,715.37
  5. Step 5: Solve for x
    x = 5,717,598,715.37/83,571.92
  6. Step 6: Final answer
    x = 68,415.31

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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.