Home / 87,739.07-131,619.54-28,558.85

Finding the Fourth Proportional to 87,739.07, 131,619.54 and 28,558.85

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Solution

The fourth proportional to 87,739.07, 131,619.54 and 28,558.85 is: 42,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,739.07 : 131,619.54 = 28,558.85 : x
  2. Step 2: Convert to fraction form
    87,739.07/131,619.54 = 28,558.85/x
  3. Step 3: Cross multiply
    87,739.07x = 131,619.54 × 28,558.85
  4. Step 4: Simplify right side
    87,739.07x = 3,758,902,699.93
  5. Step 5: Solve for x
    x = 3,758,902,699.93/87,739.07
  6. Step 6: Final answer
    x = 42,841.83

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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.