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Finding the Fourth Proportional to 38,889.60, 58,404.80 and 34,051.20

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Solution

The fourth proportional to 38,889.60, 58,404.80 and 34,051.20 is: 51,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,889.60 : 58,404.80 = 34,051.20 : x
  2. Step 2: Convert to fraction form
    38,889.60/58,404.80 = 34,051.20/x
  3. Step 3: Cross multiply
    38,889.60x = 58,404.80 × 34,051.20
  4. Step 4: Simplify right side
    38,889.60x = 1,988,753,525.76
  5. Step 5: Solve for x
    x = 1,988,753,525.76/38,889.60
  6. Step 6: Final answer
    x = 51,138.44

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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.