Home / 40,120.72-60,188.48-13,464.08

Finding the Fourth Proportional to 40,120.72, 60,188.48 and 13,464.08

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Solution

The fourth proportional to 40,120.72, 60,188.48 and 13,464.08 is: 20,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.72 : 60,188.48 = 13,464.08 : x
  2. Step 2: Convert to fraction form
    40,120.72/60,188.48 = 13,464.08/x
  3. Step 3: Cross multiply
    40,120.72x = 60,188.48 × 13,464.08
  4. Step 4: Simplify right side
    40,120.72x = 810,382,509.80
  5. Step 5: Solve for x
    x = 810,382,509.80/40,120.72
  6. Step 6: Final answer
    x = 20,198.60

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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.