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Finding the Fourth Proportional to 40,611, 60,909.51 and 11,031.22

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Solution

The fourth proportional to 40,611, 60,909.51 and 11,031.22 is: 16,544.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,611 : 60,909.51 = 11,031.22 : x
  2. Step 2: Convert to fraction form
    40,611/60,909.51 = 11,031.22/x
  3. Step 3: Cross multiply
    40,611x = 60,909.51 × 11,031.22
  4. Step 4: Simplify right side
    40,611x = 671,905,900.35
  5. Step 5: Solve for x
    x = 671,905,900.35/40,611
  6. Step 6: Final answer
    x = 16,544.92

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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.