Home / 84,943.83-127,420.61-25,781.43

Finding the Fourth Proportional to 84,943.83, 127,420.61 and 25,781.43

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Solution

The fourth proportional to 84,943.83, 127,420.61 and 25,781.43 is: 38,673.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,943.83 : 127,420.61 = 25,781.43 : x
  2. Step 2: Convert to fraction form
    84,943.83/127,420.61 = 25,781.43/x
  3. Step 3: Cross multiply
    84,943.83x = 127,420.61 × 25,781.43
  4. Step 4: Simplify right side
    84,943.83x = 3,285,085,408.37
  5. Step 5: Solve for x
    x = 3,285,085,408.37/84,943.83
  6. Step 6: Final answer
    x = 38,673.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.