Home / 54,104.25-81,130.83-31,621.38

Finding the Fourth Proportional to 54,104.25, 81,130.83 and 31,621.38

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Solution

The fourth proportional to 54,104.25, 81,130.83 and 31,621.38 is: 47,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,104.25 : 81,130.83 = 31,621.38 : x
  2. Step 2: Convert to fraction form
    54,104.25/81,130.83 = 31,621.38/x
  3. Step 3: Cross multiply
    54,104.25x = 81,130.83 × 31,621.38
  4. Step 4: Simplify right side
    54,104.25x = 2,565,468,399.49
  5. Step 5: Solve for x
    x = 2,565,468,399.49/54,104.25
  6. Step 6: Final answer
    x = 47,417.13

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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.