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Finding the Fourth Proportional to 71,018.04, 106,520.58 and 65,449.56

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Solution

The fourth proportional to 71,018.04, 106,520.58 and 65,449.56 is: 98,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,018.04 : 106,520.58 = 65,449.56 : x
  2. Step 2: Convert to fraction form
    71,018.04/106,520.58 = 65,449.56/x
  3. Step 3: Cross multiply
    71,018.04x = 106,520.58 × 65,449.56
  4. Step 4: Simplify right side
    71,018.04x = 6,971,725,091.94
  5. Step 5: Solve for x
    x = 6,971,725,091.94/71,018.04
  6. Step 6: Final answer
    x = 98,168.37

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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.