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Finding the Fourth Proportional to 57,256.70, 85,885.05 and 50,914.40

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Solution

The fourth proportional to 57,256.70, 85,885.05 and 50,914.40 is: 76,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,256.70 : 85,885.05 = 50,914.40 : x
  2. Step 2: Convert to fraction form
    57,256.70/85,885.05 = 50,914.40/x
  3. Step 3: Cross multiply
    57,256.70x = 85,885.05 × 50,914.40
  4. Step 4: Simplify right side
    57,256.70x = 4,372,785,789.72
  5. Step 5: Solve for x
    x = 4,372,785,789.72/57,256.70
  6. Step 6: Final answer
    x = 76,371.60

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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.