Home / 87,665.79-131,500.44-28,501.32

Finding the Fourth Proportional to 87,665.79, 131,500.44 and 28,501.32

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Solution

The fourth proportional to 87,665.79, 131,500.44 and 28,501.32 is: 42,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,665.79 : 131,500.44 = 28,501.32 : x
  2. Step 2: Convert to fraction form
    87,665.79/131,500.44 = 28,501.32/x
  3. Step 3: Cross multiply
    87,665.79x = 131,500.44 × 28,501.32
  4. Step 4: Simplify right side
    87,665.79x = 3,747,936,120.58
  5. Step 5: Solve for x
    x = 3,747,936,120.58/87,665.79
  6. Step 6: Final answer
    x = 42,752.55

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1.5x scale

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.