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Finding the Fourth Proportional to 63,161.84, 94,752.12 and 21,028.16

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Solution

The fourth proportional to 63,161.84, 94,752.12 and 21,028.16 is: 31,545.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,161.84 : 94,752.12 = 21,028.16 : x
  2. Step 2: Convert to fraction form
    63,161.84/94,752.12 = 21,028.16/x
  3. Step 3: Cross multiply
    63,161.84x = 94,752.12 × 21,028.16
  4. Step 4: Simplify right side
    63,161.84x = 1,992,462,739.70
  5. Step 5: Solve for x
    x = 1,992,462,739.70/63,161.84
  6. Step 6: Final answer
    x = 31,545.36

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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.