Home / 77,149.86-115,674.75-50,774.46

Finding the Fourth Proportional to 77,149.86, 115,674.75 and 50,774.46

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Solution

The fourth proportional to 77,149.86, 115,674.75 and 50,774.46 is: 76,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,149.86 : 115,674.75 = 50,774.46 : x
  2. Step 2: Convert to fraction form
    77,149.86/115,674.75 = 50,774.46/x
  3. Step 3: Cross multiply
    77,149.86x = 115,674.75 × 50,774.46
  4. Step 4: Simplify right side
    77,149.86x = 5,873,322,966.89
  5. Step 5: Solve for x
    x = 5,873,322,966.89/77,149.86
  6. Step 6: Final answer
    x = 76,128.76

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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.