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Finding the Fourth Proportional to 81,937.44, 122,900.40 and 46,766.88

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Solution

The fourth proportional to 81,937.44, 122,900.40 and 46,766.88 is: 70,147.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,937.44 : 122,900.40 = 46,766.88 : x
  2. Step 2: Convert to fraction form
    81,937.44/122,900.40 = 46,766.88/x
  3. Step 3: Cross multiply
    81,937.44x = 122,900.40 × 46,766.88
  4. Step 4: Simplify right side
    81,937.44x = 5,747,668,258.75
  5. Step 5: Solve for x
    x = 5,747,668,258.75/81,937.44
  6. Step 6: Final answer
    x = 70,147.03

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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.