Home / 56,936.10-78,571.82-31,785.60

Finding the Fourth Proportional to 56,936.10, 78,571.82 and 31,785.60

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Solution

The fourth proportional to 56,936.10, 78,571.82 and 31,785.60 is: 43,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,936.10 : 78,571.82 = 31,785.60 : x
  2. Step 2: Convert to fraction form
    56,936.10/78,571.82 = 31,785.60/x
  3. Step 3: Cross multiply
    56,936.10x = 78,571.82 × 31,785.60
  4. Step 4: Simplify right side
    56,936.10x = 2,497,452,441.79
  5. Step 5: Solve for x
    x = 2,497,452,441.79/56,936.10
  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.