Home / 55,039.86-75,955.31-31,171.19

Finding the Fourth Proportional to 55,039.86, 75,955.31 and 31,171.19

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Solution

The fourth proportional to 55,039.86, 75,955.31 and 31,171.19 is: 43,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,039.86 : 75,955.31 = 31,171.19 : x
  2. Step 2: Convert to fraction form
    55,039.86/75,955.31 = 31,171.19/x
  3. Step 3: Cross multiply
    55,039.86x = 75,955.31 × 31,171.19
  4. Step 4: Simplify right side
    55,039.86x = 2,367,616,863.89
  5. Step 5: Solve for x
    x = 2,367,616,863.89/55,039.86
  6. Step 6: Final answer
    x = 43,016.40

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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.