Home / 75,906.81-113,715.32-42,525.90

Finding the Fourth Proportional to 75,906.81, 113,715.32 and 42,525.90

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Solution

The fourth proportional to 75,906.81, 113,715.32 and 42,525.90 is: 63,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,906.81 : 113,715.32 = 42,525.90 : x
  2. Step 2: Convert to fraction form
    75,906.81/113,715.32 = 42,525.90/x
  3. Step 3: Cross multiply
    75,906.81x = 113,715.32 × 42,525.90
  4. Step 4: Simplify right side
    75,906.81x = 4,835,846,326.79
  5. Step 5: Solve for x
    x = 4,835,846,326.79/75,906.81
  6. Step 6: Final answer
    x = 63,707.67

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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.