Home / 78,728.44-118,057.13-22,555.69

Finding the Fourth Proportional to 78,728.44, 118,057.13 and 22,555.69

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Solution

The fourth proportional to 78,728.44, 118,057.13 and 22,555.69 is: 33,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,728.44 : 118,057.13 = 22,555.69 : x
  2. Step 2: Convert to fraction form
    78,728.44/118,057.13 = 22,555.69/x
  3. Step 3: Cross multiply
    78,728.44x = 118,057.13 × 22,555.69
  4. Step 4: Simplify right side
    78,728.44x = 2,662,860,026.57
  5. Step 5: Solve for x
    x = 2,662,860,026.57/78,728.44
  6. Step 6: Final answer
    x = 33,823.36

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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.