Home / 74,919.37-103,389.09-40,928.35

Finding the Fourth Proportional to 74,919.37, 103,389.09 and 40,928.35

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Solution

The fourth proportional to 74,919.37, 103,389.09 and 40,928.35 is: 56,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.37 : 103,389.09 = 40,928.35 : x
  2. Step 2: Convert to fraction form
    74,919.37/103,389.09 = 40,928.35/x
  3. Step 3: Cross multiply
    74,919.37x = 103,389.09 × 40,928.35
  4. Step 4: Simplify right side
    74,919.37x = 4,231,544,861.70
  5. Step 5: Solve for x
    x = 4,231,544,861.70/74,919.37
  6. Step 6: Final answer
    x = 56,481.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.