Home / 90,989.80-125,560.74-50,145.82

Finding the Fourth Proportional to 90,989.80, 125,560.74 and 50,145.82

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Solution

The fourth proportional to 90,989.80, 125,560.74 and 50,145.82 is: 69,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989.80 : 125,560.74 = 50,145.82 : x
  2. Step 2: Convert to fraction form
    90,989.80/125,560.74 = 50,145.82/x
  3. Step 3: Cross multiply
    90,989.80x = 125,560.74 × 50,145.82
  4. Step 4: Simplify right side
    90,989.80x = 6,296,346,267.11
  5. Step 5: Solve for x
    x = 6,296,346,267.11/90,989.80
  6. Step 6: Final answer
    x = 69,198.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.