Home / 90,783.87-136,099.26-43,372.14

Finding the Fourth Proportional to 90,783.87, 136,099.26 and 43,372.14

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Solution

The fourth proportional to 90,783.87, 136,099.26 and 43,372.14 is: 65,021.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,783.87 : 136,099.26 = 43,372.14 : x
  2. Step 2: Convert to fraction form
    90,783.87/136,099.26 = 43,372.14/x
  3. Step 3: Cross multiply
    90,783.87x = 136,099.26 × 43,372.14
  4. Step 4: Simplify right side
    90,783.87x = 5,902,916,158.62
  5. Step 5: Solve for x
    x = 5,902,916,158.62/90,783.87
  6. Step 6: Final answer
    x = 65,021.64

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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.