Home / 326,670.05-490,007.57-90,025.71

Finding the Fourth Proportional to 326,670.05, 490,007.57 and 90,025.71

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Solution

The fourth proportional to 326,670.05, 490,007.57 and 90,025.71 is: 135,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,670.05 : 490,007.57 = 90,025.71 : x
  2. Step 2: Convert to fraction form
    326,670.05/490,007.57 = 90,025.71/x
  3. Step 3: Cross multiply
    326,670.05x = 490,007.57 × 90,025.71
  4. Step 4: Simplify right side
    326,670.05x = 44,113,278,944.50
  5. Step 5: Solve for x
    x = 44,113,278,944.50/326,670.05
  6. Step 6: Final answer
    x = 135,039.25

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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.