Home / 81,928.02-122,893.66-25,766.94

Finding the Fourth Proportional to 81,928.02, 122,893.66 and 25,766.94

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Solution

The fourth proportional to 81,928.02, 122,893.66 and 25,766.94 is: 38,650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,928.02 : 122,893.66 = 25,766.94 : x
  2. Step 2: Convert to fraction form
    81,928.02/122,893.66 = 25,766.94/x
  3. Step 3: Cross multiply
    81,928.02x = 122,893.66 × 25,766.94
  4. Step 4: Simplify right side
    81,928.02x = 3,166,593,911.72
  5. Step 5: Solve for x
    x = 3,166,593,911.72/81,928.02
  6. Step 6: Final answer
    x = 38,650.93

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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.