Home / 78,567.03-117,756.79-54,745.54

Finding the Fourth Proportional to 78,567.03, 117,756.79 and 54,745.54

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Solution

The fourth proportional to 78,567.03, 117,756.79 and 54,745.54 is: 82,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,567.03 : 117,756.79 = 54,745.54 : x
  2. Step 2: Convert to fraction form
    78,567.03/117,756.79 = 54,745.54/x
  3. Step 3: Cross multiply
    78,567.03x = 117,756.79 × 54,745.54
  4. Step 4: Simplify right side
    78,567.03x = 6,446,659,057.22
  5. Step 5: Solve for x
    x = 6,446,659,057.22/78,567.03
  6. Step 6: Final answer
    x = 82,052.98

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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.