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Finding the Fourth Proportional to 64,736.96, 97,109.66 and 20,365.44

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Solution

The fourth proportional to 64,736.96, 97,109.66 and 20,365.44 is: 30,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,736.96 : 97,109.66 = 20,365.44 : x
  2. Step 2: Convert to fraction form
    64,736.96/97,109.66 = 20,365.44/x
  3. Step 3: Cross multiply
    64,736.96x = 97,109.66 × 20,365.44
  4. Step 4: Simplify right side
    64,736.96x = 1,977,680,954.15
  5. Step 5: Solve for x
    x = 1,977,680,954.15/64,736.96
  6. Step 6: Final answer
    x = 30,549.49

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1.5x scale

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.