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Finding the Fourth Proportional to 57,835.60, 86,737.20 and 18,404.80

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Solution

The fourth proportional to 57,835.60, 86,737.20 and 18,404.80 is: 27,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,835.60 : 86,737.20 = 18,404.80 : x
  2. Step 2: Convert to fraction form
    57,835.60/86,737.20 = 18,404.80/x
  3. Step 3: Cross multiply
    57,835.60x = 86,737.20 × 18,404.80
  4. Step 4: Simplify right side
    57,835.60x = 1,596,380,818.56
  5. Step 5: Solve for x
    x = 1,596,380,818.56/57,835.60
  6. Step 6: Final answer
    x = 27,602.04

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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.