Home / 78,204.06-107,922.14-42,394.62

Finding the Fourth Proportional to 78,204.06, 107,922.14 and 42,394.62

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Solution

The fourth proportional to 78,204.06, 107,922.14 and 42,394.62 is: 58,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,204.06 : 107,922.14 = 42,394.62 : x
  2. Step 2: Convert to fraction form
    78,204.06/107,922.14 = 42,394.62/x
  3. Step 3: Cross multiply
    78,204.06x = 107,922.14 × 42,394.62
  4. Step 4: Simplify right side
    78,204.06x = 4,575,318,114.89
  5. Step 5: Solve for x
    x = 4,575,318,114.89/78,204.06
  6. Step 6: Final answer
    x = 58,504.87

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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.