Home / 90,123.53-135,183.81-26,943.80

Finding the Fourth Proportional to 90,123.53, 135,183.81 and 26,943.80

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Solution

The fourth proportional to 90,123.53, 135,183.81 and 26,943.80 is: 40,415.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,123.53 : 135,183.81 = 26,943.80 : x
  2. Step 2: Convert to fraction form
    90,123.53/135,183.81 = 26,943.80/x
  3. Step 3: Cross multiply
    90,123.53x = 135,183.81 × 26,943.80
  4. Step 4: Simplify right side
    90,123.53x = 3,642,365,945.20
  5. Step 5: Solve for x
    x = 3,642,365,945.20/90,123.53
  6. Step 6: Final answer
    x = 40,415.26

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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.