Home / 40,991.05-61,486.59-31,644.71

Finding the Fourth Proportional to 40,991.05, 61,486.59 and 31,644.71

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Solution

The fourth proportional to 40,991.05, 61,486.59 and 31,644.71 is: 47,467.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,991.05 : 61,486.59 = 31,644.71 : x
  2. Step 2: Convert to fraction form
    40,991.05/61,486.59 = 31,644.71/x
  3. Step 3: Cross multiply
    40,991.05x = 61,486.59 × 31,644.71
  4. Step 4: Simplify right side
    40,991.05x = 1,945,725,309.44
  5. Step 5: Solve for x
    x = 1,945,725,309.44/40,991.05
  6. Step 6: Final answer
    x = 47,467.08

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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.