Home / 77,277.20-115,992.60-37,878.80

Finding the Fourth Proportional to 77,277.20, 115,992.60 and 37,878.80

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Solution

The fourth proportional to 77,277.20, 115,992.60 and 37,878.80 is: 56,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,277.20 : 115,992.60 = 37,878.80 : x
  2. Step 2: Convert to fraction form
    77,277.20/115,992.60 = 37,878.80/x
  3. Step 3: Cross multiply
    77,277.20x = 115,992.60 × 37,878.80
  4. Step 4: Simplify right side
    77,277.20x = 4,393,660,496.88
  5. Step 5: Solve for x
    x = 4,393,660,496.88/77,277.20
  6. Step 6: Final answer
    x = 56,855.84

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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.