Home / 84,936.68-127,405.08-21,757.04

Finding the Fourth Proportional to 84,936.68, 127,405.08 and 21,757.04

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Solution

The fourth proportional to 84,936.68, 127,405.08 and 21,757.04 is: 32,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,936.68 : 127,405.08 = 21,757.04 : x
  2. Step 2: Convert to fraction form
    84,936.68/127,405.08 = 21,757.04/x
  3. Step 3: Cross multiply
    84,936.68x = 127,405.08 × 21,757.04
  4. Step 4: Simplify right side
    84,936.68x = 2,771,957,421.76
  5. Step 5: Solve for x
    x = 2,771,957,421.76/84,936.68
  6. Step 6: Final answer
    x = 32,635.58

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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.