Home / 54,180.48-81,215.31-18,631.14

Finding the Fourth Proportional to 54,180.48, 81,215.31 and 18,631.14

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Solution

The fourth proportional to 54,180.48, 81,215.31 and 18,631.14 is: 27,927.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,180.48 : 81,215.31 = 18,631.14 : x
  2. Step 2: Convert to fraction form
    54,180.48/81,215.31 = 18,631.14/x
  3. Step 3: Cross multiply
    54,180.48x = 81,215.31 × 18,631.14
  4. Step 4: Simplify right side
    54,180.48x = 1,513,133,810.75
  5. Step 5: Solve for x
    x = 1,513,133,810.75/54,180.48
  6. Step 6: Final answer
    x = 27,927.66

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1.5x scale

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.