Home / 43,681.17-65,552.05-19,991.61

Finding the Fourth Proportional to 43,681.17, 65,552.05 and 19,991.61

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Solution

The fourth proportional to 43,681.17, 65,552.05 and 19,991.61 is: 30,001.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,681.17 : 65,552.05 = 19,991.61 : x
  2. Step 2: Convert to fraction form
    43,681.17/65,552.05 = 19,991.61/x
  3. Step 3: Cross multiply
    43,681.17x = 65,552.05 × 19,991.61
  4. Step 4: Simplify right side
    43,681.17x = 1,310,491,018.30
  5. Step 5: Solve for x
    x = 1,310,491,018.30/43,681.17
  6. Step 6: Final answer
    x = 30,001.28

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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.