Home / 76,427.33-114,637.91-38,986.58

Finding the Fourth Proportional to 76,427.33, 114,637.91 and 38,986.58

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Solution

The fourth proportional to 76,427.33, 114,637.91 and 38,986.58 is: 58,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,427.33 : 114,637.91 = 38,986.58 : x
  2. Step 2: Convert to fraction form
    76,427.33/114,637.91 = 38,986.58/x
  3. Step 3: Cross multiply
    76,427.33x = 114,637.91 × 38,986.58
  4. Step 4: Simplify right side
    76,427.33x = 4,469,339,281.13
  5. Step 5: Solve for x
    x = 4,469,339,281.13/76,427.33
  6. Step 6: Final answer
    x = 58,478.29

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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.