Home / 90,090.20-134,950.78-50,564.32

Finding the Fourth Proportional to 90,090.20, 134,950.78 and 50,564.32

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Solution

The fourth proportional to 90,090.20, 134,950.78 and 50,564.32 is: 75,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,090.20 : 134,950.78 = 50,564.32 : x
  2. Step 2: Convert to fraction form
    90,090.20/134,950.78 = 50,564.32/x
  3. Step 3: Cross multiply
    90,090.20x = 134,950.78 × 50,564.32
  4. Step 4: Simplify right side
    90,090.20x = 6,823,694,424.17
  5. Step 5: Solve for x
    x = 6,823,694,424.17/90,090.20
  6. Step 6: Final answer
    x = 75,742.92

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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.