Home / 90,842.20-136,004.10-55,850.20

Finding the Fourth Proportional to 90,842.20, 136,004.10 and 55,850.20

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Solution

The fourth proportional to 90,842.20, 136,004.10 and 55,850.20 is: 83,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842.20 : 136,004.10 = 55,850.20 : x
  2. Step 2: Convert to fraction form
    90,842.20/136,004.10 = 55,850.20/x
  3. Step 3: Cross multiply
    90,842.20x = 136,004.10 × 55,850.20
  4. Step 4: Simplify right side
    90,842.20x = 7,595,856,185.82
  5. Step 5: Solve for x
    x = 7,595,856,185.82/90,842.20
  6. Step 6: Final answer
    x = 83,615.94

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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.