Home / 77,260.70-115,735.22-64,745.60

Finding the Fourth Proportional to 77,260.70, 115,735.22 and 64,745.60

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Solution

The fourth proportional to 77,260.70, 115,735.22 and 64,745.60 is: 96,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,260.70 : 115,735.22 = 64,745.60 : x
  2. Step 2: Convert to fraction form
    77,260.70/115,735.22 = 64,745.60/x
  3. Step 3: Cross multiply
    77,260.70x = 115,735.22 × 64,745.60
  4. Step 4: Simplify right side
    77,260.70x = 7,493,345,357.63
  5. Step 5: Solve for x
    x = 7,493,345,357.63/77,260.70
  6. Step 6: Final answer
    x = 96,987.81

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1.5x scale

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.