Home / 55,218.60-76,202.58-31,345.98

Finding the Fourth Proportional to 55,218.60, 76,202.58 and 31,345.98

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Solution

The fourth proportional to 55,218.60, 76,202.58 and 31,345.98 is: 43,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218.60 : 76,202.58 = 31,345.98 : x
  2. Step 2: Convert to fraction form
    55,218.60/76,202.58 = 31,345.98/x
  3. Step 3: Cross multiply
    55,218.60x = 76,202.58 × 31,345.98
  4. Step 4: Simplify right side
    55,218.60x = 2,388,644,548.63
  5. Step 5: Solve for x
    x = 2,388,644,548.63/55,218.60
  6. Step 6: Final answer
    x = 43,257.97

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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.