Home / 91,431.38-126,200.66-53,198.31

Finding the Fourth Proportional to 91,431.38, 126,200.66 and 53,198.31

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Solution

The fourth proportional to 91,431.38, 126,200.66 and 53,198.31 is: 73,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,431.38 : 126,200.66 = 53,198.31 : x
  2. Step 2: Convert to fraction form
    91,431.38/126,200.66 = 53,198.31/x
  3. Step 3: Cross multiply
    91,431.38x = 126,200.66 × 53,198.31
  4. Step 4: Simplify right side
    91,431.38x = 6,713,662,134.07
  5. Step 5: Solve for x
    x = 6,713,662,134.07/91,431.38
  6. Step 6: Final answer
    x = 73,428.43

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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.