Home / 61,630.21-91,999.49-54,156.84

Finding the Fourth Proportional to 61,630.21, 91,999.49 and 54,156.84

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Solution

The fourth proportional to 61,630.21, 91,999.49 and 54,156.84 is: 80,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,630.21 : 91,999.49 = 54,156.84 : x
  2. Step 2: Convert to fraction form
    61,630.21/91,999.49 = 54,156.84/x
  3. Step 3: Cross multiply
    61,630.21x = 91,999.49 × 54,156.84
  4. Step 4: Simplify right side
    61,630.21x = 4,982,401,660.01
  5. Step 5: Solve for x
    x = 4,982,401,660.01/61,630.21
  6. Step 6: Final answer
    x = 80,843.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.