Home / 78,922.62-108,893.70-50,666.58

Finding the Fourth Proportional to 78,922.62, 108,893.70 and 50,666.58

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Solution

The fourth proportional to 78,922.62, 108,893.70 and 50,666.58 is: 69,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,922.62 : 108,893.70 = 50,666.58 : x
  2. Step 2: Convert to fraction form
    78,922.62/108,893.70 = 50,666.58/x
  3. Step 3: Cross multiply
    78,922.62x = 108,893.70 × 50,666.58
  4. Step 4: Simplify right side
    78,922.62x = 5,517,271,362.55
  5. Step 5: Solve for x
    x = 5,517,271,362.55/78,922.62
  6. Step 6: Final answer
    x = 69,907.35

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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.