Home / 56,936.11-78,571.81-31,785.61

Finding the Fourth Proportional to 56,936.11, 78,571.81 and 31,785.61

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Solution

The fourth proportional to 56,936.11, 78,571.81 and 31,785.61 is: 43,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,936.11 : 78,571.81 = 31,785.61 : x
  2. Step 2: Convert to fraction form
    56,936.11/78,571.81 = 31,785.61/x
  3. Step 3: Cross multiply
    56,936.11x = 78,571.81 × 31,785.61
  4. Step 4: Simplify right side
    56,936.11x = 2,497,452,909.65
  5. Step 5: Solve for x
    x = 2,497,452,909.65/56,936.11
  6. Step 6: Final answer
    x = 43,864.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.