Home / 53,945.16-74,438.16-31,279.44

Finding the Fourth Proportional to 53,945.16, 74,438.16 and 31,279.44

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Solution

The fourth proportional to 53,945.16, 74,438.16 and 31,279.44 is: 43,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,945.16 : 74,438.16 = 31,279.44 : x
  2. Step 2: Convert to fraction form
    53,945.16/74,438.16 = 31,279.44/x
  3. Step 3: Cross multiply
    53,945.16x = 74,438.16 × 31,279.44
  4. Step 4: Simplify right side
    53,945.16x = 2,328,383,959.43
  5. Step 5: Solve for x
    x = 2,328,383,959.43/53,945.16
  6. Step 6: Final answer
    x = 43,162.05

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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.