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Finding the Fourth Proportional to 63,989.78, 96,003.11 and 19,623.07

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Solution

The fourth proportional to 63,989.78, 96,003.11 and 19,623.07 is: 29,440.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.78 : 96,003.11 = 19,623.07 : x
  2. Step 2: Convert to fraction form
    63,989.78/96,003.11 = 19,623.07/x
  3. Step 3: Cross multiply
    63,989.78x = 96,003.11 × 19,623.07
  4. Step 4: Simplify right side
    63,989.78x = 1,883,875,649.63
  5. Step 5: Solve for x
    x = 1,883,875,649.63/63,989.78
  6. Step 6: Final answer
    x = 29,440.26

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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.