Home / 83,327.31-124,991.78-20,997.81

Finding the Fourth Proportional to 83,327.31, 124,991.78 and 20,997.81

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Solution

The fourth proportional to 83,327.31, 124,991.78 and 20,997.81 is: 31,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,327.31 : 124,991.78 = 20,997.81 : x
  2. Step 2: Convert to fraction form
    83,327.31/124,991.78 = 20,997.81/x
  3. Step 3: Cross multiply
    83,327.31x = 124,991.78 × 20,997.81
  4. Step 4: Simplify right side
    83,327.31x = 2,624,553,543.01
  5. Step 5: Solve for x
    x = 2,624,553,543.01/83,327.31
  6. Step 6: Final answer
    x = 31,496.92

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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.