Home / 36,140.31-53,945.78-31,879.35

Finding the Fourth Proportional to 36,140.31, 53,945.78 and 31,879.35

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Solution

The fourth proportional to 36,140.31, 53,945.78 and 31,879.35 is: 47,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,140.31 : 53,945.78 = 31,879.35 : x
  2. Step 2: Convert to fraction form
    36,140.31/53,945.78 = 31,879.35/x
  3. Step 3: Cross multiply
    36,140.31x = 53,945.78 × 31,879.35
  4. Step 4: Simplify right side
    36,140.31x = 1,719,756,242.25
  5. Step 5: Solve for x
    x = 1,719,756,242.25/36,140.31
  6. Step 6: Final answer
    x = 47,585.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.