Home / 70,212.24-105,297.57-20,292.80

Finding the Fourth Proportional to 70,212.24, 105,297.57 and 20,292.80

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Solution

The fourth proportional to 70,212.24, 105,297.57 and 20,292.80 is: 30,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212.24 : 105,297.57 = 20,292.80 : x
  2. Step 2: Convert to fraction form
    70,212.24/105,297.57 = 20,292.80/x
  3. Step 3: Cross multiply
    70,212.24x = 105,297.57 × 20,292.80
  4. Step 4: Simplify right side
    70,212.24x = 2,136,782,002.01
  5. Step 5: Solve for x
    x = 2,136,782,002.01/70,212.24
  6. Step 6: Final answer
    x = 30,433.18

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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.