Home / 90,099.20-135,216.12-33,994.64

Finding the Fourth Proportional to 90,099.20, 135,216.12 and 33,994.64

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Solution

The fourth proportional to 90,099.20, 135,216.12 and 33,994.64 is: 51,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,099.20 : 135,216.12 = 33,994.64 : x
  2. Step 2: Convert to fraction form
    90,099.20/135,216.12 = 33,994.64/x
  3. Step 3: Cross multiply
    90,099.20x = 135,216.12 × 33,994.64
  4. Step 4: Simplify right side
    90,099.20x = 4,596,623,321.60
  5. Step 5: Solve for x
    x = 4,596,623,321.60/90,099.20
  6. Step 6: Final answer
    x = 51,017.36

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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.