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Finding the Fourth Proportional to 64,734.10, 97,101.15 and 20,374.45

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Solution

The fourth proportional to 64,734.10, 97,101.15 and 20,374.45 is: 30,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,734.10 : 97,101.15 = 20,374.45 : x
  2. Step 2: Convert to fraction form
    64,734.10/97,101.15 = 20,374.45/x
  3. Step 3: Cross multiply
    64,734.10x = 97,101.15 × 20,374.45
  4. Step 4: Simplify right side
    64,734.10x = 1,978,382,525.62
  5. Step 5: Solve for x
    x = 1,978,382,525.62/64,734.10
  6. Step 6: Final answer
    x = 30,561.68

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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.