Home / 54,983.08-75,876.66-31,109.28

Finding the Fourth Proportional to 54,983.08, 75,876.66 and 31,109.28

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Solution

The fourth proportional to 54,983.08, 75,876.66 and 31,109.28 is: 42,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,983.08 : 75,876.66 = 31,109.28 : x
  2. Step 2: Convert to fraction form
    54,983.08/75,876.66 = 31,109.28/x
  3. Step 3: Cross multiply
    54,983.08x = 75,876.66 × 31,109.28
  4. Step 4: Simplify right side
    54,983.08x = 2,360,468,261.40
  5. Step 5: Solve for x
    x = 2,360,468,261.40/54,983.08
  6. Step 6: Final answer
    x = 42,930.81

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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.