Home / 57,784.20-86,676.30-54,328.20

Finding the Fourth Proportional to 57,784.20, 86,676.30 and 54,328.20

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Solution

The fourth proportional to 57,784.20, 86,676.30 and 54,328.20 is: 81,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,784.20 : 86,676.30 = 54,328.20 : x
  2. Step 2: Convert to fraction form
    57,784.20/86,676.30 = 54,328.20/x
  3. Step 3: Cross multiply
    57,784.20x = 86,676.30 × 54,328.20
  4. Step 4: Simplify right side
    57,784.20x = 4,708,967,361.66
  5. Step 5: Solve for x
    x = 4,708,967,361.66/57,784.20
  6. Step 6: Final answer
    x = 81,492.30

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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.