Home / 49,578.12-68,398.02-31,668.48

Finding the Fourth Proportional to 49,578.12, 68,398.02 and 31,668.48

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Solution

The fourth proportional to 49,578.12, 68,398.02 and 31,668.48 is: 43,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,578.12 : 68,398.02 = 31,668.48 : x
  2. Step 2: Convert to fraction form
    49,578.12/68,398.02 = 31,668.48/x
  3. Step 3: Cross multiply
    49,578.12x = 68,398.02 × 31,668.48
  4. Step 4: Simplify right side
    49,578.12x = 2,166,061,328.41
  5. Step 5: Solve for x
    x = 2,166,061,328.41/49,578.12
  6. Step 6: Final answer
    x = 43,689.86

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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.