Home / 91,517.45-126,296.21-51,230.21

Finding the Fourth Proportional to 91,517.45, 126,296.21 and 51,230.21

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Solution

The fourth proportional to 91,517.45, 126,296.21 and 51,230.21 is: 70,698.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,517.45 : 126,296.21 = 51,230.21 : x
  2. Step 2: Convert to fraction form
    91,517.45/126,296.21 = 51,230.21/x
  3. Step 3: Cross multiply
    91,517.45x = 126,296.21 × 51,230.21
  4. Step 4: Simplify right side
    91,517.45x = 6,470,180,857.10
  5. Step 5: Solve for x
    x = 6,470,180,857.10/91,517.45
  6. Step 6: Final answer
    x = 70,698.88

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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.