Home / 40,182.83-55,388.26-31,671.75

Finding the Fourth Proportional to 40,182.83, 55,388.26 and 31,671.75

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Solution

The fourth proportional to 40,182.83, 55,388.26 and 31,671.75 is: 43,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,182.83 : 55,388.26 = 31,671.75 : x
  2. Step 2: Convert to fraction form
    40,182.83/55,388.26 = 31,671.75/x
  3. Step 3: Cross multiply
    40,182.83x = 55,388.26 × 31,671.75
  4. Step 4: Simplify right side
    40,182.83x = 1,754,243,044.48
  5. Step 5: Solve for x
    x = 1,754,243,044.48/40,182.83
  6. Step 6: Final answer
    x = 43,656.54

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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.