Home / 85,284.96-127,761.21-51,922.28

Finding the Fourth Proportional to 85,284.96, 127,761.21 and 51,922.28

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Solution

The fourth proportional to 85,284.96, 127,761.21 and 51,922.28 is: 77,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,284.96 : 127,761.21 = 51,922.28 : x
  2. Step 2: Convert to fraction form
    85,284.96/127,761.21 = 51,922.28/x
  3. Step 3: Cross multiply
    85,284.96x = 127,761.21 × 51,922.28
  4. Step 4: Simplify right side
    85,284.96x = 6,633,653,318.76
  5. Step 5: Solve for x
    x = 6,633,653,318.76/85,284.96
  6. Step 6: Final answer
    x = 77,782.22

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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.