Home / 55,046-75,960.48-31,172.96

Finding the Fourth Proportional to 55,046, 75,960.48 and 31,172.96

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Solution

The fourth proportional to 55,046, 75,960.48 and 31,172.96 is: 43,016.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,046 : 75,960.48 = 31,172.96 : x
  2. Step 2: Convert to fraction form
    55,046/75,960.48 = 31,172.96/x
  3. Step 3: Cross multiply
    55,046x = 75,960.48 × 31,172.96
  4. Step 4: Simplify right side
    55,046x = 2,367,913,004.62
  5. Step 5: Solve for x
    x = 2,367,913,004.62/55,046
  6. Step 6: Final answer
    x = 43,016.99

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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.