Home / 76,927.28-115,389.98-19,996.14

Finding the Fourth Proportional to 76,927.28, 115,389.98 and 19,996.14

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Solution

The fourth proportional to 76,927.28, 115,389.98 and 19,996.14 is: 29,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,927.28 : 115,389.98 = 19,996.14 : x
  2. Step 2: Convert to fraction form
    76,927.28/115,389.98 = 19,996.14/x
  3. Step 3: Cross multiply
    76,927.28x = 115,389.98 × 19,996.14
  4. Step 4: Simplify right side
    76,927.28x = 2,307,354,194.68
  5. Step 5: Solve for x
    x = 2,307,354,194.68/76,927.28
  6. Step 6: Final answer
    x = 29,993.97

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1.5x scale

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.