Home / 90,719.28-125,193.30-49,884.12

Finding the Fourth Proportional to 90,719.28, 125,193.30 and 49,884.12

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Solution

The fourth proportional to 90,719.28, 125,193.30 and 49,884.12 is: 68,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,719.28 : 125,193.30 = 49,884.12 : x
  2. Step 2: Convert to fraction form
    90,719.28/125,193.30 = 49,884.12/x
  3. Step 3: Cross multiply
    90,719.28x = 125,193.30 × 49,884.12
  4. Step 4: Simplify right side
    90,719.28x = 6,245,157,600.40
  5. Step 5: Solve for x
    x = 6,245,157,600.40/90,719.28
  6. Step 6: Final answer
    x = 68,840.47

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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.