Home / 90,734.88-135,811.12-48,509.44

Finding the Fourth Proportional to 90,734.88, 135,811.12 and 48,509.44

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Solution

The fourth proportional to 90,734.88, 135,811.12 and 48,509.44 is: 72,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,734.88 : 135,811.12 = 48,509.44 : x
  2. Step 2: Convert to fraction form
    90,734.88/135,811.12 = 48,509.44/x
  3. Step 3: Cross multiply
    90,734.88x = 135,811.12 × 48,509.44
  4. Step 4: Simplify right side
    90,734.88x = 6,588,121,376.97
  5. Step 5: Solve for x
    x = 6,588,121,376.97/90,734.88
  6. Step 6: Final answer
    x = 72,608.48

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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.