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Finding the Fourth Proportional to 64,902, 97,370.28 and 20,529.56

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Solution

The fourth proportional to 64,902, 97,370.28 and 20,529.56 is: 30,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,902 : 97,370.28 = 20,529.56 : x
  2. Step 2: Convert to fraction form
    64,902/97,370.28 = 20,529.56/x
  3. Step 3: Cross multiply
    64,902x = 97,370.28 × 20,529.56
  4. Step 4: Simplify right side
    64,902x = 1,998,969,005.48
  5. Step 5: Solve for x
    x = 1,998,969,005.48/64,902
  6. Step 6: Final answer
    x = 30,799.81

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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.