Home / 87,378.50-131,034.44-31,208.12

Finding the Fourth Proportional to 87,378.50, 131,034.44 and 31,208.12

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Solution

The fourth proportional to 87,378.50, 131,034.44 and 31,208.12 is: 46,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,378.50 : 131,034.44 = 31,208.12 : x
  2. Step 2: Convert to fraction form
    87,378.50/131,034.44 = 31,208.12/x
  3. Step 3: Cross multiply
    87,378.50x = 131,034.44 × 31,208.12
  4. Step 4: Simplify right side
    87,378.50x = 4,089,338,527.65
  5. Step 5: Solve for x
    x = 4,089,338,527.65/87,378.50
  6. Step 6: Final answer
    x = 46,800.28

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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.