Home / 40,738.40-61,107.60-30,896.90

Finding the Fourth Proportional to 40,738.40, 61,107.60 and 30,896.90

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Solution

The fourth proportional to 40,738.40, 61,107.60 and 30,896.90 is: 46,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,738.40 : 61,107.60 = 30,896.90 : x
  2. Step 2: Convert to fraction form
    40,738.40/61,107.60 = 30,896.90/x
  3. Step 3: Cross multiply
    40,738.40x = 61,107.60 × 30,896.90
  4. Step 4: Simplify right side
    40,738.40x = 1,888,035,406.44
  5. Step 5: Solve for x
    x = 1,888,035,406.44/40,738.40
  6. Step 6: Final answer
    x = 46,345.35

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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.