Home / 54,918.40-75,792.09-31,049.32

Finding the Fourth Proportional to 54,918.40, 75,792.09 and 31,049.32

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Solution

The fourth proportional to 54,918.40, 75,792.09 and 31,049.32 is: 42,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,918.40 : 75,792.09 = 31,049.32 : x
  2. Step 2: Convert to fraction form
    54,918.40/75,792.09 = 31,049.32/x
  3. Step 3: Cross multiply
    54,918.40x = 75,792.09 × 31,049.32
  4. Step 4: Simplify right side
    54,918.40x = 2,353,292,855.88
  5. Step 5: Solve for x
    x = 2,353,292,855.88/54,918.40
  6. Step 6: Final answer
    x = 42,850.72

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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.