Home / 80,771.32-121,157.01-36,346.18

Finding the Fourth Proportional to 80,771.32, 121,157.01 and 36,346.18

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Solution

The fourth proportional to 80,771.32, 121,157.01 and 36,346.18 is: 54,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,771.32 : 121,157.01 = 36,346.18 : x
  2. Step 2: Convert to fraction form
    80,771.32/121,157.01 = 36,346.18/x
  3. Step 3: Cross multiply
    80,771.32x = 121,157.01 × 36,346.18
  4. Step 4: Simplify right side
    80,771.32x = 4,403,593,706.21
  5. Step 5: Solve for x
    x = 4,403,593,706.21/80,771.32
  6. Step 6: Final answer
    x = 54,519.28

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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.