Home / 78,040.68-117,096.56-33,074.36

Finding the Fourth Proportional to 78,040.68, 117,096.56 and 33,074.36

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Solution

The fourth proportional to 78,040.68, 117,096.56 and 33,074.36 is: 49,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,040.68 : 117,096.56 = 33,074.36 : x
  2. Step 2: Convert to fraction form
    78,040.68/117,096.56 = 33,074.36/x
  3. Step 3: Cross multiply
    78,040.68x = 117,096.56 × 33,074.36
  4. Step 4: Simplify right side
    78,040.68x = 3,872,893,780.20
  5. Step 5: Solve for x
    x = 3,872,893,780.20/78,040.68
  6. Step 6: Final answer
    x = 49,626.60

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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.