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Finding the Fourth Proportional to 71,101.01, 106,650.15 and 21,214.94

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Solution

The fourth proportional to 71,101.01, 106,650.15 and 21,214.94 is: 31,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,101.01 : 106,650.15 = 21,214.94 : x
  2. Step 2: Convert to fraction form
    71,101.01/106,650.15 = 21,214.94/x
  3. Step 3: Cross multiply
    71,101.01x = 106,650.15 × 21,214.94
  4. Step 4: Simplify right side
    71,101.01x = 2,262,575,999.99
  5. Step 5: Solve for x
    x = 2,262,575,999.99/71,101.01
  6. Step 6: Final answer
    x = 31,822.00

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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.