Home / 86,921.71-119,943.89-49,195.96

Finding the Fourth Proportional to 86,921.71, 119,943.89 and 49,195.96

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Solution

The fourth proportional to 86,921.71, 119,943.89 and 49,195.96 is: 67,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.71 : 119,943.89 = 49,195.96 : x
  2. Step 2: Convert to fraction form
    86,921.71/119,943.89 = 49,195.96/x
  3. Step 3: Cross multiply
    86,921.71x = 119,943.89 × 49,195.96
  4. Step 4: Simplify right side
    86,921.71x = 5,900,754,453.33
  5. Step 5: Solve for x
    x = 5,900,754,453.33/86,921.71
  6. Step 6: Final answer
    x = 67,885.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.