Home / 87,710.24-131,567.39-28,550.53

Finding the Fourth Proportional to 87,710.24, 131,567.39 and 28,550.53

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Solution

The fourth proportional to 87,710.24, 131,567.39 and 28,550.53 is: 42,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,710.24 : 131,567.39 = 28,550.53 : x
  2. Step 2: Convert to fraction form
    87,710.24/131,567.39 = 28,550.53/x
  3. Step 3: Cross multiply
    87,710.24x = 131,567.39 × 28,550.53
  4. Step 4: Simplify right side
    87,710.24x = 3,756,318,103.92
  5. Step 5: Solve for x
    x = 3,756,318,103.92/87,710.24
  6. Step 6: Final answer
    x = 42,826.45

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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.