Home / 84,079.35-126,091.26-30,759.21

Finding the Fourth Proportional to 84,079.35, 126,091.26 and 30,759.21

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Solution

The fourth proportional to 84,079.35, 126,091.26 and 30,759.21 is: 46,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,079.35 : 126,091.26 = 30,759.21 : x
  2. Step 2: Convert to fraction form
    84,079.35/126,091.26 = 30,759.21/x
  3. Step 3: Cross multiply
    84,079.35x = 126,091.26 × 30,759.21
  4. Step 4: Simplify right side
    84,079.35x = 3,878,467,545.50
  5. Step 5: Solve for x
    x = 3,878,467,545.50/84,079.35
  6. Step 6: Final answer
    x = 46,128.66

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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.