Home / 40,786.47-61,186.73-12,704.45

Finding the Fourth Proportional to 40,786.47, 61,186.73 and 12,704.45

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Solution

The fourth proportional to 40,786.47, 61,186.73 and 12,704.45 is: 19,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,786.47 : 61,186.73 = 12,704.45 : x
  2. Step 2: Convert to fraction form
    40,786.47/61,186.73 = 12,704.45/x
  3. Step 3: Cross multiply
    40,786.47x = 61,186.73 × 12,704.45
  4. Step 4: Simplify right side
    40,786.47x = 777,343,382.49
  5. Step 5: Solve for x
    x = 777,343,382.49/40,786.47
  6. Step 6: Final answer
    x = 19,058.85

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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.