Home / 40,743.01-61,115.79-12,663.21

Finding the Fourth Proportional to 40,743.01, 61,115.79 and 12,663.21

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Solution

The fourth proportional to 40,743.01, 61,115.79 and 12,663.21 is: 18,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,743.01 : 61,115.79 = 12,663.21 : x
  2. Step 2: Convert to fraction form
    40,743.01/61,115.79 = 12,663.21/x
  3. Step 3: Cross multiply
    40,743.01x = 61,115.79 × 12,663.21
  4. Step 4: Simplify right side
    40,743.01x = 773,922,083.09
  5. Step 5: Solve for x
    x = 773,922,083.09/40,743.01
  6. Step 6: Final answer
    x = 18,995.21

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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.