Home / 57,212.20-85,818.30-54,004.60

Finding the Fourth Proportional to 57,212.20, 85,818.30 and 54,004.60

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Solution

The fourth proportional to 57,212.20, 85,818.30 and 54,004.60 is: 81,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212.20 : 85,818.30 = 54,004.60 : x
  2. Step 2: Convert to fraction form
    57,212.20/85,818.30 = 54,004.60/x
  3. Step 3: Cross multiply
    57,212.20x = 85,818.30 × 54,004.60
  4. Step 4: Simplify right side
    57,212.20x = 4,634,582,964.18
  5. Step 5: Solve for x
    x = 4,634,582,964.18/57,212.20
  6. Step 6: Final answer
    x = 81,006.90

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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.