Home / 78,234.42-117,309.24-27,608.07

Finding the Fourth Proportional to 78,234.42, 117,309.24 and 27,608.07

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Solution

The fourth proportional to 78,234.42, 117,309.24 and 27,608.07 is: 41,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,234.42 : 117,309.24 = 27,608.07 : x
  2. Step 2: Convert to fraction form
    78,234.42/117,309.24 = 27,608.07/x
  3. Step 3: Cross multiply
    78,234.42x = 117,309.24 × 27,608.07
  4. Step 4: Simplify right side
    78,234.42x = 3,238,681,709.57
  5. Step 5: Solve for x
    x = 3,238,681,709.57/78,234.42
  6. Step 6: Final answer
    x = 41,397.15

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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.