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Finding the Fourth Proportional to 45,485.66, 68,235.77 and 19,194.27

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Solution

The fourth proportional to 45,485.66, 68,235.77 and 19,194.27 is: 28,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,485.66 : 68,235.77 = 19,194.27 : x
  2. Step 2: Convert to fraction form
    45,485.66/68,235.77 = 19,194.27/x
  3. Step 3: Cross multiply
    45,485.66x = 68,235.77 × 19,194.27
  4. Step 4: Simplify right side
    45,485.66x = 1,309,735,697.07
  5. Step 5: Solve for x
    x = 1,309,735,697.07/45,485.66
  6. Step 6: Final answer
    x = 28,794.48

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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.