Home / 84,921.64-127,382.76-25,757.82

Finding the Fourth Proportional to 84,921.64, 127,382.76 and 25,757.82

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Solution

The fourth proportional to 84,921.64, 127,382.76 and 25,757.82 is: 38,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,921.64 : 127,382.76 = 25,757.82 : x
  2. Step 2: Convert to fraction form
    84,921.64/127,382.76 = 25,757.82/x
  3. Step 3: Cross multiply
    84,921.64x = 127,382.76 × 25,757.82
  4. Step 4: Simplify right side
    84,921.64x = 3,281,102,203.18
  5. Step 5: Solve for x
    x = 3,281,102,203.18/84,921.64
  6. Step 6: Final answer
    x = 38,636.82

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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.