Home / 70,022.70-105,002.46-20,091.48

Finding the Fourth Proportional to 70,022.70, 105,002.46 and 20,091.48

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Solution

The fourth proportional to 70,022.70, 105,002.46 and 20,091.48 is: 30,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,022.70 : 105,002.46 = 20,091.48 : x
  2. Step 2: Convert to fraction form
    70,022.70/105,002.46 = 20,091.48/x
  3. Step 3: Cross multiply
    70,022.70x = 105,002.46 × 20,091.48
  4. Step 4: Simplify right side
    70,022.70x = 2,109,654,825.04
  5. Step 5: Solve for x
    x = 2,109,654,825.04/70,022.70
  6. Step 6: Final answer
    x = 30,128.16

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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.