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Finding the Fourth Proportional to 64,775.60, 97,105.80 and 38,452.40

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Solution

The fourth proportional to 64,775.60, 97,105.80 and 38,452.40 is: 57,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,775.60 : 97,105.80 = 38,452.40 : x
  2. Step 2: Convert to fraction form
    64,775.60/97,105.80 = 38,452.40/x
  3. Step 3: Cross multiply
    64,775.60x = 97,105.80 × 38,452.40
  4. Step 4: Simplify right side
    64,775.60x = 3,733,951,063.92
  5. Step 5: Solve for x
    x = 3,733,951,063.92/64,775.60
  6. Step 6: Final answer
    x = 57,644.41

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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.