Home / 80,856.55-121,284.83-36,504.55

Finding the Fourth Proportional to 80,856.55, 121,284.83 and 36,504.55

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Solution

The fourth proportional to 80,856.55, 121,284.83 and 36,504.55 is: 54,756.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,856.55 : 121,284.83 = 36,504.55 : x
  2. Step 2: Convert to fraction form
    80,856.55/121,284.83 = 36,504.55/x
  3. Step 3: Cross multiply
    80,856.55x = 121,284.83 × 36,504.55
  4. Step 4: Simplify right side
    80,856.55x = 4,427,447,958.45
  5. Step 5: Solve for x
    x = 4,427,447,958.45/80,856.55
  6. Step 6: Final answer
    x = 54,756.83

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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.