Home / 87,762.56-131,618.70-28,603.40

Finding the Fourth Proportional to 87,762.56, 131,618.70 and 28,603.40

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Solution

The fourth proportional to 87,762.56, 131,618.70 and 28,603.40 is: 42,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,762.56 : 131,618.70 = 28,603.40 : x
  2. Step 2: Convert to fraction form
    87,762.56/131,618.70 = 28,603.40/x
  3. Step 3: Cross multiply
    87,762.56x = 131,618.70 × 28,603.40
  4. Step 4: Simplify right side
    87,762.56x = 3,764,741,665.49
  5. Step 5: Solve for x
    x = 3,764,741,665.49/87,762.56
  6. Step 6: Final answer
    x = 42,896.90

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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.