Home / 79,737.04-109,240.26-76,747.60

Finding the Fourth Proportional to 79,737.04, 109,240.26 and 76,747.60

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Solution

The fourth proportional to 79,737.04, 109,240.26 and 76,747.60 is: 105,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,737.04 : 109,240.26 = 76,747.60 : x
  2. Step 2: Convert to fraction form
    79,737.04/109,240.26 = 76,747.60/x
  3. Step 3: Cross multiply
    79,737.04x = 109,240.26 × 76,747.60
  4. Step 4: Simplify right side
    79,737.04x = 8,383,927,778.38
  5. Step 5: Solve for x
    x = 8,383,927,778.38/79,737.04
  6. Step 6: Final answer
    x = 105,144.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.