Home / 84,109.70-126,176.16-30,794.69

Finding the Fourth Proportional to 84,109.70, 126,176.16 and 30,794.69

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Solution

The fourth proportional to 84,109.70, 126,176.16 and 30,794.69 is: 46,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,109.70 : 126,176.16 = 30,794.69 : x
  2. Step 2: Convert to fraction form
    84,109.70/126,176.16 = 30,794.69/x
  3. Step 3: Cross multiply
    84,109.70x = 126,176.16 × 30,794.69
  4. Step 4: Simplify right side
    84,109.70x = 3,885,555,732.59
  5. Step 5: Solve for x
    x = 3,885,555,732.59/84,109.70
  6. Step 6: Final answer
    x = 46,196.29

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1.5x scale

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.