Home / 56,965.40-85,217.70-51,435.80

Finding the Fourth Proportional to 56,965.40, 85,217.70 and 51,435.80

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Solution

The fourth proportional to 56,965.40, 85,217.70 and 51,435.80 is: 76,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,965.40 : 85,217.70 = 51,435.80 : x
  2. Step 2: Convert to fraction form
    56,965.40/85,217.70 = 51,435.80/x
  3. Step 3: Cross multiply
    56,965.40x = 85,217.70 × 51,435.80
  4. Step 4: Simplify right side
    56,965.40x = 4,383,240,573.66
  5. Step 5: Solve for x
    x = 4,383,240,573.66/56,965.40
  6. Step 6: Final answer
    x = 76,945.66

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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.