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Finding the Fourth Proportional to 64,068.33, 96,035.63 and 21,936

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Solution

The fourth proportional to 64,068.33, 96,035.63 and 21,936 is: 32,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,068.33 : 96,035.63 = 21,936 : x
  2. Step 2: Convert to fraction form
    64,068.33/96,035.63 = 21,936/x
  3. Step 3: Cross multiply
    64,068.33x = 96,035.63 × 21,936
  4. Step 4: Simplify right side
    64,068.33x = 2,106,637,470
  5. Step 5: Solve for x
    x = 2,106,637,470/64,068.33
  6. Step 6: Final answer
    x = 32,881.10

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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.