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Finding the Fourth Proportional to 85,225.42, 127,793.09 and 37,819.91

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Solution

The fourth proportional to 85,225.42, 127,793.09 and 37,819.91 is: 56,709.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,225.42 : 127,793.09 = 37,819.91 : x
  2. Step 2: Convert to fraction form
    85,225.42/127,793.09 = 37,819.91/x
  3. Step 3: Cross multiply
    85,225.42x = 127,793.09 × 37,819.91
  4. Step 4: Simplify right side
    85,225.42x = 4,833,123,576.45
  5. Step 5: Solve for x
    x = 4,833,123,576.45/85,225.42
  6. Step 6: Final answer
    x = 56,709.89

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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.