Home / 76,739.46-105,876.09-43,198.98

Finding the Fourth Proportional to 76,739.46, 105,876.09 and 43,198.98

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Solution

The fourth proportional to 76,739.46, 105,876.09 and 43,198.98 is: 59,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,739.46 : 105,876.09 = 43,198.98 : x
  2. Step 2: Convert to fraction form
    76,739.46/105,876.09 = 43,198.98/x
  3. Step 3: Cross multiply
    76,739.46x = 105,876.09 × 43,198.98
  4. Step 4: Simplify right side
    76,739.46x = 4,573,739,094.39
  5. Step 5: Solve for x
    x = 4,573,739,094.39/76,739.46
  6. Step 6: Final answer
    x = 59,600.88

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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.