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Finding the Fourth Proportional to 78,841.80, 108,804.22 and 44,849.40

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Solution

The fourth proportional to 78,841.80, 108,804.22 and 44,849.40 is: 61,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,841.80 : 108,804.22 = 44,849.40 : x
  2. Step 2: Convert to fraction form
    78,841.80/108,804.22 = 44,849.40/x
  3. Step 3: Cross multiply
    78,841.80x = 108,804.22 × 44,849.40
  4. Step 4: Simplify right side
    78,841.80x = 4,879,803,984.47
  5. Step 5: Solve for x
    x = 4,879,803,984.47/78,841.80
  6. Step 6: Final answer
    x = 61,893.61

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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.