Home / 90,899.30-125,446.20-54,611.84

Finding the Fourth Proportional to 90,899.30, 125,446.20 and 54,611.84

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Solution

The fourth proportional to 90,899.30, 125,446.20 and 54,611.84 is: 75,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,899.30 : 125,446.20 = 54,611.84 : x
  2. Step 2: Convert to fraction form
    90,899.30/125,446.20 = 54,611.84/x
  3. Step 3: Cross multiply
    90,899.30x = 125,446.20 × 54,611.84
  4. Step 4: Simplify right side
    90,899.30x = 6,850,847,803.01
  5. Step 5: Solve for x
    x = 6,850,847,803.01/90,899.30
  6. Step 6: Final answer
    x = 75,367.44

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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.