Home / 90,719.76-125,213.58-50,447.64

Finding the Fourth Proportional to 90,719.76, 125,213.58 and 50,447.64

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Solution

The fourth proportional to 90,719.76, 125,213.58 and 50,447.64 is: 69,629.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,719.76 : 125,213.58 = 50,447.64 : x
  2. Step 2: Convert to fraction form
    90,719.76/125,213.58 = 50,447.64/x
  3. Step 3: Cross multiply
    90,719.76x = 125,213.58 × 50,447.64
  4. Step 4: Simplify right side
    90,719.76x = 6,316,729,606.95
  5. Step 5: Solve for x
    x = 6,316,729,606.95/90,719.76
  6. Step 6: Final answer
    x = 69,629.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.