Home / 87,730.51-131,607.49-30,790.90

Finding the Fourth Proportional to 87,730.51, 131,607.49 and 30,790.90

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Solution

The fourth proportional to 87,730.51, 131,607.49 and 30,790.90 is: 46,190.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,730.51 : 131,607.49 = 30,790.90 : x
  2. Step 2: Convert to fraction form
    87,730.51/131,607.49 = 30,790.90/x
  3. Step 3: Cross multiply
    87,730.51x = 131,607.49 × 30,790.90
  4. Step 4: Simplify right side
    87,730.51x = 4,052,313,063.84
  5. Step 5: Solve for x
    x = 4,052,313,063.84/87,730.51
  6. Step 6: Final answer
    x = 46,190.47

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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.