Home / 74,247.36-111,429.36-40,990.38

Finding the Fourth Proportional to 74,247.36, 111,429.36 and 40,990.38

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Solution

The fourth proportional to 74,247.36, 111,429.36 and 40,990.38 is: 61,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,247.36 : 111,429.36 = 40,990.38 : x
  2. Step 2: Convert to fraction form
    74,247.36/111,429.36 = 40,990.38/x
  3. Step 3: Cross multiply
    74,247.36x = 111,429.36 × 40,990.38
  4. Step 4: Simplify right side
    74,247.36x = 4,567,531,809.56
  5. Step 5: Solve for x
    x = 4,567,531,809.56/74,247.36
  6. Step 6: Final answer
    x = 61,517.77

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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.