Home / 49,865.66-68,821.29-31,718.15

Finding the Fourth Proportional to 49,865.66, 68,821.29 and 31,718.15

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Solution

The fourth proportional to 49,865.66, 68,821.29 and 31,718.15 is: 43,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,865.66 : 68,821.29 = 31,718.15 : x
  2. Step 2: Convert to fraction form
    49,865.66/68,821.29 = 31,718.15/x
  3. Step 3: Cross multiply
    49,865.66x = 68,821.29 × 31,718.15
  4. Step 4: Simplify right side
    49,865.66x = 2,182,884,171.47
  5. Step 5: Solve for x
    x = 2,182,884,171.47/49,865.66
  6. Step 6: Final answer
    x = 43,775.30

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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.