Home / 90,085.42-135,128.16-23,524.97

Finding the Fourth Proportional to 90,085.42, 135,128.16 and 23,524.97

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Solution

The fourth proportional to 90,085.42, 135,128.16 and 23,524.97 is: 35,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,085.42 : 135,128.16 = 23,524.97 : x
  2. Step 2: Convert to fraction form
    90,085.42/135,128.16 = 23,524.97/x
  3. Step 3: Cross multiply
    90,085.42x = 135,128.16 × 23,524.97
  4. Step 4: Simplify right side
    90,085.42x = 3,178,885,910.16
  5. Step 5: Solve for x
    x = 3,178,885,910.16/90,085.42
  6. Step 6: Final answer
    x = 35,287.46

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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.