Home / 54,621.72-75,387.94-31,959.40

Finding the Fourth Proportional to 54,621.72, 75,387.94 and 31,959.40

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Solution

The fourth proportional to 54,621.72, 75,387.94 and 31,959.40 is: 44,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.72 : 75,387.94 = 31,959.40 : x
  2. Step 2: Convert to fraction form
    54,621.72/75,387.94 = 31,959.40/x
  3. Step 3: Cross multiply
    54,621.72x = 75,387.94 × 31,959.40
  4. Step 4: Simplify right side
    54,621.72x = 2,409,353,329.64
  5. Step 5: Solve for x
    x = 2,409,353,329.64/54,621.72
  6. Step 6: Final answer
    x = 44,109.80

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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.