Home / 76,947.22-115,415.07-27,027.76

Finding the Fourth Proportional to 76,947.22, 115,415.07 and 27,027.76

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Solution

The fourth proportional to 76,947.22, 115,415.07 and 27,027.76 is: 40,539.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,947.22 : 115,415.07 = 27,027.76 : x
  2. Step 2: Convert to fraction form
    76,947.22/115,415.07 = 27,027.76/x
  3. Step 3: Cross multiply
    76,947.22x = 115,415.07 × 27,027.76
  4. Step 4: Simplify right side
    76,947.22x = 3,119,410,812.34
  5. Step 5: Solve for x
    x = 3,119,410,812.34/76,947.22
  6. Step 6: Final answer
    x = 40,539.62

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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.