Home / 90,591.74-125,012.42-50,308.07

Finding the Fourth Proportional to 90,591.74, 125,012.42 and 50,308.07

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Solution

The fourth proportional to 90,591.74, 125,012.42 and 50,308.07 is: 69,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,591.74 : 125,012.42 = 50,308.07 : x
  2. Step 2: Convert to fraction form
    90,591.74/125,012.42 = 50,308.07/x
  3. Step 3: Cross multiply
    90,591.74x = 125,012.42 × 50,308.07
  4. Step 4: Simplify right side
    90,591.74x = 6,289,133,576.23
  5. Step 5: Solve for x
    x = 6,289,133,576.23/90,591.74
  6. Step 6: Final answer
    x = 69,422.81

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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.