Home / 54,130.46-81,348.51-31,954.28

Finding the Fourth Proportional to 54,130.46, 81,348.51 and 31,954.28

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Solution

The fourth proportional to 54,130.46, 81,348.51 and 31,954.28 is: 48,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,130.46 : 81,348.51 = 31,954.28 : x
  2. Step 2: Convert to fraction form
    54,130.46/81,348.51 = 31,954.28/x
  3. Step 3: Cross multiply
    54,130.46x = 81,348.51 × 31,954.28
  4. Step 4: Simplify right side
    54,130.46x = 2,599,433,066.12
  5. Step 5: Solve for x
    x = 2,599,433,066.12/54,130.46
  6. Step 6: Final answer
    x = 48,021.63

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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.