Home / 83,996.94-125,927.37-31,398.78

Finding the Fourth Proportional to 83,996.94, 125,927.37 and 31,398.78

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Solution

The fourth proportional to 83,996.94, 125,927.37 and 31,398.78 is: 47,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,996.94 : 125,927.37 = 31,398.78 : x
  2. Step 2: Convert to fraction form
    83,996.94/125,927.37 = 31,398.78/x
  3. Step 3: Cross multiply
    83,996.94x = 125,927.37 × 31,398.78
  4. Step 4: Simplify right side
    83,996.94x = 3,953,965,786.61
  5. Step 5: Solve for x
    x = 3,953,965,786.61/83,996.94
  6. Step 6: Final answer
    x = 47,072.74

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1.5x scale

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.