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Finding the Fourth Proportional to 71,033.03, 106,566.21 and 21,113.54

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Solution

The fourth proportional to 71,033.03, 106,566.21 and 21,113.54 is: 31,675.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,033.03 : 106,566.21 = 21,113.54 : x
  2. Step 2: Convert to fraction form
    71,033.03/106,566.21 = 21,113.54/x
  3. Step 3: Cross multiply
    71,033.03x = 106,566.21 × 21,113.54
  4. Step 4: Simplify right side
    71,033.03x = 2,249,989,404.65
  5. Step 5: Solve for x
    x = 2,249,989,404.65/71,033.03
  6. Step 6: Final answer
    x = 31,675.26

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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.