Home / 91,266.28-125,943.78-50,979.40

Finding the Fourth Proportional to 91,266.28, 125,943.78 and 50,979.40

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Solution

The fourth proportional to 91,266.28, 125,943.78 and 50,979.40 is: 70,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,266.28 : 125,943.78 = 50,979.40 : x
  2. Step 2: Convert to fraction form
    91,266.28/125,943.78 = 50,979.40/x
  3. Step 3: Cross multiply
    91,266.28x = 125,943.78 × 50,979.40
  4. Step 4: Simplify right side
    91,266.28x = 6,420,538,338.13
  5. Step 5: Solve for x
    x = 6,420,538,338.13/91,266.28
  6. Step 6: Final answer
    x = 70,349.51

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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.