Home / 79,136.32-118,729.44-34,800.40

Finding the Fourth Proportional to 79,136.32, 118,729.44 and 34,800.40

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Solution

The fourth proportional to 79,136.32, 118,729.44 and 34,800.40 is: 52,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.32 : 118,729.44 = 34,800.40 : x
  2. Step 2: Convert to fraction form
    79,136.32/118,729.44 = 34,800.40/x
  3. Step 3: Cross multiply
    79,136.32x = 118,729.44 × 34,800.40
  4. Step 4: Simplify right side
    79,136.32x = 4,131,832,003.78
  5. Step 5: Solve for x
    x = 4,131,832,003.78/79,136.32
  6. Step 6: Final answer
    x = 52,211.58

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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.