Home / 107,747.51-161,621.13-28,859.58

Finding the Fourth Proportional to 107,747.51, 161,621.13 and 28,859.58

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Solution

The fourth proportional to 107,747.51, 161,621.13 and 28,859.58 is: 43,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,747.51 : 161,621.13 = 28,859.58 : x
  2. Step 2: Convert to fraction form
    107,747.51/161,621.13 = 28,859.58/x
  3. Step 3: Cross multiply
    107,747.51x = 161,621.13 × 28,859.58
  4. Step 4: Simplify right side
    107,747.51x = 4,664,317,930.93
  5. Step 5: Solve for x
    x = 4,664,317,930.93/107,747.51
  6. Step 6: Final answer
    x = 43,289.34

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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.