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Finding the Fourth Proportional to 64,727.67, 97,101.96 and 19,139.99

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Solution

The fourth proportional to 64,727.67, 97,101.96 and 19,139.99 is: 28,713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,727.67 : 97,101.96 = 19,139.99 : x
  2. Step 2: Convert to fraction form
    64,727.67/97,101.96 = 19,139.99/x
  3. Step 3: Cross multiply
    64,727.67x = 97,101.96 × 19,139.99
  4. Step 4: Simplify right side
    64,727.67x = 1,858,530,259.19
  5. Step 5: Solve for x
    x = 1,858,530,259.19/64,727.67
  6. Step 6: Final answer
    x = 28,713.07

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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.