Home / 74,109.75-102,271.46-40,575.75

Finding the Fourth Proportional to 74,109.75, 102,271.46 and 40,575.75

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Solution

The fourth proportional to 74,109.75, 102,271.46 and 40,575.75 is: 55,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.75 : 102,271.46 = 40,575.75 : x
  2. Step 2: Convert to fraction form
    74,109.75/102,271.46 = 40,575.75/x
  3. Step 3: Cross multiply
    74,109.75x = 102,271.46 × 40,575.75
  4. Step 4: Simplify right side
    74,109.75x = 4,149,740,990.22
  5. Step 5: Solve for x
    x = 4,149,740,990.22/74,109.75
  6. Step 6: Final answer
    x = 55,994.54

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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.