Home / 78,772.23-118,118.93-26,163.27

Finding the Fourth Proportional to 78,772.23, 118,118.93 and 26,163.27

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Solution

The fourth proportional to 78,772.23, 118,118.93 and 26,163.27 is: 39,231.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,772.23 : 118,118.93 = 26,163.27 : x
  2. Step 2: Convert to fraction form
    78,772.23/118,118.93 = 26,163.27/x
  3. Step 3: Cross multiply
    78,772.23x = 118,118.93 × 26,163.27
  4. Step 4: Simplify right side
    78,772.23x = 3,090,377,326.88
  5. Step 5: Solve for x
    x = 3,090,377,326.88/78,772.23
  6. Step 6: Final answer
    x = 39,231.81

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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.