Home / 78,093.14-107,768.07-42,282.41

Finding the Fourth Proportional to 78,093.14, 107,768.07 and 42,282.41

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Solution

The fourth proportional to 78,093.14, 107,768.07 and 42,282.41 is: 58,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,093.14 : 107,768.07 = 42,282.41 : x
  2. Step 2: Convert to fraction form
    78,093.14/107,768.07 = 42,282.41/x
  3. Step 3: Cross multiply
    78,093.14x = 107,768.07 × 42,282.41
  4. Step 4: Simplify right side
    78,093.14x = 4,556,693,181.81
  5. Step 5: Solve for x
    x = 4,556,693,181.81/78,093.14
  6. Step 6: Final answer
    x = 58,349.47

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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.