Home / 114,780.89-172,072.73-39,891.31

Finding the Fourth Proportional to 114,780.89, 172,072.73 and 39,891.31

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Solution

The fourth proportional to 114,780.89, 172,072.73 and 39,891.31 is: 59,802.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,780.89 : 172,072.73 = 39,891.31 : x
  2. Step 2: Convert to fraction form
    114,780.89/172,072.73 = 39,891.31/x
  3. Step 3: Cross multiply
    114,780.89x = 172,072.73 × 39,891.31
  4. Step 4: Simplify right side
    114,780.89x = 6,864,206,134.93
  5. Step 5: Solve for x
    x = 6,864,206,134.93/114,780.89
  6. Step 6: Final answer
    x = 59,802.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.