Home / 81,816.39-112,915.17-50,006.48

Finding the Fourth Proportional to 81,816.39, 112,915.17 and 50,006.48

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Solution

The fourth proportional to 81,816.39, 112,915.17 and 50,006.48 is: 69,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,816.39 : 112,915.17 = 50,006.48 : x
  2. Step 2: Convert to fraction form
    81,816.39/112,915.17 = 50,006.48/x
  3. Step 3: Cross multiply
    81,816.39x = 112,915.17 × 50,006.48
  4. Step 4: Simplify right side
    81,816.39x = 5,646,489,625.73
  5. Step 5: Solve for x
    x = 5,646,489,625.73/81,816.39
  6. Step 6: Final answer
    x = 69,014.16

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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.