Home / 55,647.07-76,796.72-31,439.64

Finding the Fourth Proportional to 55,647.07, 76,796.72 and 31,439.64

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Solution

The fourth proportional to 55,647.07, 76,796.72 and 31,439.64 is: 43,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,647.07 : 76,796.72 = 31,439.64 : x
  2. Step 2: Convert to fraction form
    55,647.07/76,796.72 = 31,439.64/x
  3. Step 3: Cross multiply
    55,647.07x = 76,796.72 × 31,439.64
  4. Step 4: Simplify right side
    55,647.07x = 2,414,461,229.98
  5. Step 5: Solve for x
    x = 2,414,461,229.98/55,647.07
  6. Step 6: Final answer
    x = 43,388.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.