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Finding the Fourth Proportional to 71,494.88, 107,186.24 and 45,144.26

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Solution

The fourth proportional to 71,494.88, 107,186.24 and 45,144.26 is: 67,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,494.88 : 107,186.24 = 45,144.26 : x
  2. Step 2: Convert to fraction form
    71,494.88/107,186.24 = 45,144.26/x
  3. Step 3: Cross multiply
    71,494.88x = 107,186.24 × 45,144.26
  4. Step 4: Simplify right side
    71,494.88x = 4,838,843,486.98
  5. Step 5: Solve for x
    x = 4,838,843,486.98/71,494.88
  6. Step 6: Final answer
    x = 67,680.98

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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.