Home / 82,709.78-124,076.97-38,341.02

Finding the Fourth Proportional to 82,709.78, 124,076.97 and 38,341.02

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Solution

The fourth proportional to 82,709.78, 124,076.97 and 38,341.02 is: 57,517.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,709.78 : 124,076.97 = 38,341.02 : x
  2. Step 2: Convert to fraction form
    82,709.78/124,076.97 = 38,341.02/x
  3. Step 3: Cross multiply
    82,709.78x = 124,076.97 × 38,341.02
  4. Step 4: Simplify right side
    82,709.78x = 4,757,237,123.02
  5. Step 5: Solve for x
    x = 4,757,237,123.02/82,709.78
  6. Step 6: Final answer
    x = 57,517.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.