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Finding the Fourth Proportional to 71,203.50, 106,828.63 and 29,118.97

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Solution

The fourth proportional to 71,203.50, 106,828.63 and 29,118.97 is: 43,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,203.50 : 106,828.63 = 29,118.97 : x
  2. Step 2: Convert to fraction form
    71,203.50/106,828.63 = 29,118.97/x
  3. Step 3: Cross multiply
    71,203.50x = 106,828.63 × 29,118.97
  4. Step 4: Simplify right side
    71,203.50x = 3,110,740,128.89
  5. Step 5: Solve for x
    x = 3,110,740,128.89/71,203.50
  6. Step 6: Final answer
    x = 43,688.02

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1.5x scale

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.