Home / 49,419.80-68,131.53-31,261.49

Finding the Fourth Proportional to 49,419.80, 68,131.53 and 31,261.49

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Solution

The fourth proportional to 49,419.80, 68,131.53 and 31,261.49 is: 43,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,419.80 : 68,131.53 = 31,261.49 : x
  2. Step 2: Convert to fraction form
    49,419.80/68,131.53 = 31,261.49/x
  3. Step 3: Cross multiply
    49,419.80x = 68,131.53 × 31,261.49
  4. Step 4: Simplify right side
    49,419.80x = 2,129,893,143.78
  5. Step 5: Solve for x
    x = 2,129,893,143.78/49,419.80
  6. Step 6: Final answer
    x = 43,097.97

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1.5x scale

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.