Home / 276,255.55-414,342.32-76,555.12

Finding the Fourth Proportional to 276,255.55, 414,342.32 and 76,555.12

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Solution

The fourth proportional to 276,255.55, 414,342.32 and 76,555.12 is: 114,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,255.55 : 414,342.32 = 76,555.12 : x
  2. Step 2: Convert to fraction form
    276,255.55/414,342.32 = 76,555.12/x
  3. Step 3: Cross multiply
    276,255.55x = 414,342.32 × 76,555.12
  4. Step 4: Simplify right side
    276,255.55x = 31,720,023,574.19
  5. Step 5: Solve for x
    x = 31,720,023,574.19/276,255.55
  6. Step 6: Final answer
    x = 114,821.31

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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.