Home / 80,771.24-121,156.89-36,346.10

Finding the Fourth Proportional to 80,771.24, 121,156.89 and 36,346.10

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Solution

The fourth proportional to 80,771.24, 121,156.89 and 36,346.10 is: 54,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,771.24 : 121,156.89 = 36,346.10 : x
  2. Step 2: Convert to fraction form
    80,771.24/121,156.89 = 36,346.10/x
  3. Step 3: Cross multiply
    80,771.24x = 121,156.89 × 36,346.10
  4. Step 4: Simplify right side
    80,771.24x = 4,403,579,697.55
  5. Step 5: Solve for x
    x = 4,403,579,697.55/80,771.24
  6. Step 6: Final answer
    x = 54,519.15

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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.