Home / 78,331.28-117,535.82-50,266.40

Finding the Fourth Proportional to 78,331.28, 117,535.82 and 50,266.40

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Solution

The fourth proportional to 78,331.28, 117,535.82 and 50,266.40 is: 75,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,331.28 : 117,535.82 = 50,266.40 : x
  2. Step 2: Convert to fraction form
    78,331.28/117,535.82 = 50,266.40/x
  3. Step 3: Cross multiply
    78,331.28x = 117,535.82 × 50,266.40
  4. Step 4: Simplify right side
    78,331.28x = 5,908,102,542.45
  5. Step 5: Solve for x
    x = 5,908,102,542.45/78,331.28
  6. Step 6: Final answer
    x = 75,424.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.