Home / 49,729.88-68,578.61-31,818.35

Finding the Fourth Proportional to 49,729.88, 68,578.61 and 31,818.35

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Solution

The fourth proportional to 49,729.88, 68,578.61 and 31,818.35 is: 43,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,729.88 : 68,578.61 = 31,818.35 : x
  2. Step 2: Convert to fraction form
    49,729.88/68,578.61 = 31,818.35/x
  3. Step 3: Cross multiply
    49,729.88x = 68,578.61 × 31,818.35
  4. Step 4: Simplify right side
    49,729.88x = 2,182,057,713.51
  5. Step 5: Solve for x
    x = 2,182,057,713.51/49,729.88
  6. Step 6: Final answer
    x = 43,878.21

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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.