Home / 87,346.91-131,048.06-31,185.81

Finding the Fourth Proportional to 87,346.91, 131,048.06 and 31,185.81

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Solution

The fourth proportional to 87,346.91, 131,048.06 and 31,185.81 is: 46,788.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.91 : 131,048.06 = 31,185.81 : x
  2. Step 2: Convert to fraction form
    87,346.91/131,048.06 = 31,185.81/x
  3. Step 3: Cross multiply
    87,346.91x = 131,048.06 × 31,185.81
  4. Step 4: Simplify right side
    87,346.91x = 4,086,839,744.10
  5. Step 5: Solve for x
    x = 4,086,839,744.10/87,346.91
  6. Step 6: Final answer
    x = 46,788.60

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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.