Home / 76,964.59-115,327.81-51,906.43

Finding the Fourth Proportional to 76,964.59, 115,327.81 and 51,906.43

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Solution

The fourth proportional to 76,964.59, 115,327.81 and 51,906.43 is: 77,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,964.59 : 115,327.81 = 51,906.43 : x
  2. Step 2: Convert to fraction form
    76,964.59/115,327.81 = 51,906.43/x
  3. Step 3: Cross multiply
    76,964.59x = 115,327.81 × 51,906.43
  4. Step 4: Simplify right side
    76,964.59x = 5,986,254,896.82
  5. Step 5: Solve for x
    x = 5,986,254,896.82/76,964.59
  6. Step 6: Final answer
    x = 77,779.34

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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.