Home / 79,135.32-109,217.14-45,136.02

Finding the Fourth Proportional to 79,135.32, 109,217.14 and 45,136.02

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Solution

The fourth proportional to 79,135.32, 109,217.14 and 45,136.02 is: 62,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135.32 : 109,217.14 = 45,136.02 : x
  2. Step 2: Convert to fraction form
    79,135.32/109,217.14 = 45,136.02/x
  3. Step 3: Cross multiply
    79,135.32x = 109,217.14 × 45,136.02
  4. Step 4: Simplify right side
    79,135.32x = 4,929,626,951.65
  5. Step 5: Solve for x
    x = 4,929,626,951.65/79,135.32
  6. Step 6: Final answer
    x = 62,293.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.