Home / 55,308.54-76,325.80-31,434.60

Finding the Fourth Proportional to 55,308.54, 76,325.80 and 31,434.60

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Solution

The fourth proportional to 55,308.54, 76,325.80 and 31,434.60 is: 43,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,308.54 : 76,325.80 = 31,434.60 : x
  2. Step 2: Convert to fraction form
    55,308.54/76,325.80 = 31,434.60/x
  3. Step 3: Cross multiply
    55,308.54x = 76,325.80 × 31,434.60
  4. Step 4: Simplify right side
    55,308.54x = 2,399,270,992.68
  5. Step 5: Solve for x
    x = 2,399,270,992.68/55,308.54
  6. Step 6: Final answer
    x = 43,379.76

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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.