Home / 84,929.20-127,361.40-25,745.20

Finding the Fourth Proportional to 84,929.20, 127,361.40 and 25,745.20

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Solution

The fourth proportional to 84,929.20, 127,361.40 and 25,745.20 is: 38,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,929.20 : 127,361.40 = 25,745.20 : x
  2. Step 2: Convert to fraction form
    84,929.20/127,361.40 = 25,745.20/x
  3. Step 3: Cross multiply
    84,929.20x = 127,361.40 × 25,745.20
  4. Step 4: Simplify right side
    84,929.20x = 3,278,944,715.28
  5. Step 5: Solve for x
    x = 3,278,944,715.28/84,929.20
  6. Step 6: Final answer
    x = 38,607.98

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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.