Home / 70,285.25-105,433.34-20,366.07

Finding the Fourth Proportional to 70,285.25, 105,433.34 and 20,366.07

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Solution

The fourth proportional to 70,285.25, 105,433.34 and 20,366.07 is: 30,550.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,285.25 : 105,433.34 = 20,366.07 : x
  2. Step 2: Convert to fraction form
    70,285.25/105,433.34 = 20,366.07/x
  3. Step 3: Cross multiply
    70,285.25x = 105,433.34 × 20,366.07
  4. Step 4: Simplify right side
    70,285.25x = 2,147,262,285.57
  5. Step 5: Solve for x
    x = 2,147,262,285.57/70,285.25
  6. Step 6: Final answer
    x = 30,550.68

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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.