Home / 40,606.05-60,915.64-12,519.53

Finding the Fourth Proportional to 40,606.05, 60,915.64 and 12,519.53

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Solution

The fourth proportional to 40,606.05, 60,915.64 and 12,519.53 is: 18,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,606.05 : 60,915.64 = 12,519.53 : x
  2. Step 2: Convert to fraction form
    40,606.05/60,915.64 = 12,519.53/x
  3. Step 3: Cross multiply
    40,606.05x = 60,915.64 × 12,519.53
  4. Step 4: Simplify right side
    40,606.05x = 762,635,119.85
  5. Step 5: Solve for x
    x = 762,635,119.85/40,606.05
  6. Step 6: Final answer
    x = 18,781.32

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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.