Home / 54,887.60-75,743.82-31,015.28

Finding the Fourth Proportional to 54,887.60, 75,743.82 and 31,015.28

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Solution

The fourth proportional to 54,887.60, 75,743.82 and 31,015.28 is: 42,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,887.60 : 75,743.82 = 31,015.28 : x
  2. Step 2: Convert to fraction form
    54,887.60/75,743.82 = 31,015.28/x
  3. Step 3: Cross multiply
    54,887.60x = 75,743.82 × 31,015.28
  4. Step 4: Simplify right side
    54,887.60x = 2,349,215,785.57
  5. Step 5: Solve for x
    x = 2,349,215,785.57/54,887.60
  6. Step 6: Final answer
    x = 42,800.48

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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.