Home / 74,016.75-102,145.56-40,482.75

Finding the Fourth Proportional to 74,016.75, 102,145.56 and 40,482.75

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Solution

The fourth proportional to 74,016.75, 102,145.56 and 40,482.75 is: 55,867.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,016.75 : 102,145.56 = 40,482.75 : x
  2. Step 2: Convert to fraction form
    74,016.75/102,145.56 = 40,482.75/x
  3. Step 3: Cross multiply
    74,016.75x = 102,145.56 × 40,482.75
  4. Step 4: Simplify right side
    74,016.75x = 4,135,133,169.09
  5. Step 5: Solve for x
    x = 4,135,133,169.09/74,016.75
  6. Step 6: Final answer
    x = 55,867.53

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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.