Home / 82,747.28-114,192.12-45,021.56

Finding the Fourth Proportional to 82,747.28, 114,192.12 and 45,021.56

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Solution

The fourth proportional to 82,747.28, 114,192.12 and 45,021.56 is: 62,130.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,747.28 : 114,192.12 = 45,021.56 : x
  2. Step 2: Convert to fraction form
    82,747.28/114,192.12 = 45,021.56/x
  3. Step 3: Cross multiply
    82,747.28x = 114,192.12 × 45,021.56
  4. Step 4: Simplify right side
    82,747.28x = 5,141,107,382.11
  5. Step 5: Solve for x
    x = 5,141,107,382.11/82,747.28
  6. Step 6: Final answer
    x = 62,130.23

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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.