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Finding the Fourth Proportional to 64,371.84, 96,557.79 and 19,998.62

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Solution

The fourth proportional to 64,371.84, 96,557.79 and 19,998.62 is: 29,997.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,371.84 : 96,557.79 = 19,998.62 : x
  2. Step 2: Convert to fraction form
    64,371.84/96,557.79 = 19,998.62/x
  3. Step 3: Cross multiply
    64,371.84x = 96,557.79 × 19,998.62
  4. Step 4: Simplify right side
    64,371.84x = 1,931,022,550.25
  5. Step 5: Solve for x
    x = 1,931,022,550.25/64,371.84
  6. Step 6: Final answer
    x = 29,997.94

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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.