Home / 49,272.48-68,018.40-31,392

Finding the Fourth Proportional to 49,272.48, 68,018.40 and 31,392

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Solution

The fourth proportional to 49,272.48, 68,018.40 and 31,392 is: 43,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,272.48 : 68,018.40 = 31,392 : x
  2. Step 2: Convert to fraction form
    49,272.48/68,018.40 = 31,392/x
  3. Step 3: Cross multiply
    49,272.48x = 68,018.40 × 31,392
  4. Step 4: Simplify right side
    49,272.48x = 2,135,233,612.80
  5. Step 5: Solve for x
    x = 2,135,233,612.80/49,272.48
  6. Step 6: Final answer
    x = 43,335.22

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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.