Home / 74,091.65-102,245.63-40,099.39

Finding the Fourth Proportional to 74,091.65, 102,245.63 and 40,099.39

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Solution

The fourth proportional to 74,091.65, 102,245.63 and 40,099.39 is: 55,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,091.65 : 102,245.63 = 40,099.39 : x
  2. Step 2: Convert to fraction form
    74,091.65/102,245.63 = 40,099.39/x
  3. Step 3: Cross multiply
    74,091.65x = 102,245.63 × 40,099.39
  4. Step 4: Simplify right side
    74,091.65x = 4,099,986,937.05
  5. Step 5: Solve for x
    x = 4,099,986,937.05/74,091.65
  6. Step 6: Final answer
    x = 55,336.70

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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.