Home / 54,178.46-81,247.47-18,629.72

Finding the Fourth Proportional to 54,178.46, 81,247.47 and 18,629.72

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Solution

The fourth proportional to 54,178.46, 81,247.47 and 18,629.72 is: 27,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,178.46 : 81,247.47 = 18,629.72 : x
  2. Step 2: Convert to fraction form
    54,178.46/81,247.47 = 18,629.72/x
  3. Step 3: Cross multiply
    54,178.46x = 81,247.47 × 18,629.72
  4. Step 4: Simplify right side
    54,178.46x = 1,513,617,460.26
  5. Step 5: Solve for x
    x = 1,513,617,460.26/54,178.46
  6. Step 6: Final answer
    x = 27,937.63

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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.