Home / 81,513.75-122,281.56-34,777.56

Finding the Fourth Proportional to 81,513.75, 122,281.56 and 34,777.56

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Solution

The fourth proportional to 81,513.75, 122,281.56 and 34,777.56 is: 52,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,513.75 : 122,281.56 = 34,777.56 : x
  2. Step 2: Convert to fraction form
    81,513.75/122,281.56 = 34,777.56/x
  3. Step 3: Cross multiply
    81,513.75x = 122,281.56 × 34,777.56
  4. Step 4: Simplify right side
    81,513.75x = 4,252,654,289.79
  5. Step 5: Solve for x
    x = 4,252,654,289.79/81,513.75
  6. Step 6: Final answer
    x = 52,171.01

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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.