Home / 70,928.10-106,390.80-18,336.42

Finding the Fourth Proportional to 70,928.10, 106,390.80 and 18,336.42

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Solution

The fourth proportional to 70,928.10, 106,390.80 and 18,336.42 is: 27,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,928.10 : 106,390.80 = 18,336.42 : x
  2. Step 2: Convert to fraction form
    70,928.10/106,390.80 = 18,336.42/x
  3. Step 3: Cross multiply
    70,928.10x = 106,390.80 × 18,336.42
  4. Step 4: Simplify right side
    70,928.10x = 1,950,826,392.94
  5. Step 5: Solve for x
    x = 1,950,826,392.94/70,928.10
  6. Step 6: Final answer
    x = 27,504.28

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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.