Home / 54,216.89-81,330.83-18,673.56

Finding the Fourth Proportional to 54,216.89, 81,330.83 and 18,673.56

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Solution

The fourth proportional to 54,216.89, 81,330.83 and 18,673.56 is: 28,012.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.89 : 81,330.83 = 18,673.56 : x
  2. Step 2: Convert to fraction form
    54,216.89/81,330.83 = 18,673.56/x
  3. Step 3: Cross multiply
    54,216.89x = 81,330.83 × 18,673.56
  4. Step 4: Simplify right side
    54,216.89x = 1,518,736,040.49
  5. Step 5: Solve for x
    x = 1,518,736,040.49/54,216.89
  6. Step 6: Final answer
    x = 28,012.23

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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.