Home / 54,270.15-74,890.62-31,609.86

Finding the Fourth Proportional to 54,270.15, 74,890.62 and 31,609.86

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Solution

The fourth proportional to 54,270.15, 74,890.62 and 31,609.86 is: 43,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,270.15 : 74,890.62 = 31,609.86 : x
  2. Step 2: Convert to fraction form
    54,270.15/74,890.62 = 31,609.86/x
  3. Step 3: Cross multiply
    54,270.15x = 74,890.62 × 31,609.86
  4. Step 4: Simplify right side
    54,270.15x = 2,367,282,013.51
  5. Step 5: Solve for x
    x = 2,367,282,013.51/54,270.15
  6. Step 6: Final answer
    x = 43,620.33

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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.