Home / 49,739.81-68,666.30-38,383.79

Finding the Fourth Proportional to 49,739.81, 68,666.30 and 38,383.79

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Solution

The fourth proportional to 49,739.81, 68,666.30 and 38,383.79 is: 52,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,739.81 : 68,666.30 = 38,383.79 : x
  2. Step 2: Convert to fraction form
    49,739.81/68,666.30 = 38,383.79/x
  3. Step 3: Cross multiply
    49,739.81x = 68,666.30 × 38,383.79
  4. Step 4: Simplify right side
    49,739.81x = 2,635,672,647.36
  5. Step 5: Solve for x
    x = 2,635,672,647.36/49,739.81
  6. Step 6: Final answer
    x = 52,989.20

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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.