Home / 39,185.28-54,072-31,751.04

Finding the Fourth Proportional to 39,185.28, 54,072 and 31,751.04

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Solution

The fourth proportional to 39,185.28, 54,072 and 31,751.04 is: 43,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,185.28 : 54,072 = 31,751.04 : x
  2. Step 2: Convert to fraction form
    39,185.28/54,072 = 31,751.04/x
  3. Step 3: Cross multiply
    39,185.28x = 54,072 × 31,751.04
  4. Step 4: Simplify right side
    39,185.28x = 1,716,842,234.88
  5. Step 5: Solve for x
    x = 1,716,842,234.88/39,185.28
  6. Step 6: Final answer
    x = 43,813.45

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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.