Home / 54,784.94-75,612.50-31,811.20

Finding the Fourth Proportional to 54,784.94, 75,612.50 and 31,811.20

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Solution

The fourth proportional to 54,784.94, 75,612.50 and 31,811.20 is: 43,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,784.94 : 75,612.50 = 31,811.20 : x
  2. Step 2: Convert to fraction form
    54,784.94/75,612.50 = 31,811.20/x
  3. Step 3: Cross multiply
    54,784.94x = 75,612.50 × 31,811.20
  4. Step 4: Simplify right side
    54,784.94x = 2,405,324,360
  5. Step 5: Solve for x
    x = 2,405,324,360/54,784.94
  6. Step 6: Final answer
    x = 43,904.85

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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.