Home / 73,026.54-109,558.03-20,435.57

Finding the Fourth Proportional to 73,026.54, 109,558.03 and 20,435.57

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Solution

The fourth proportional to 73,026.54, 109,558.03 and 20,435.57 is: 30,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,026.54 : 109,558.03 = 20,435.57 : x
  2. Step 2: Convert to fraction form
    73,026.54/109,558.03 = 20,435.57/x
  3. Step 3: Cross multiply
    73,026.54x = 109,558.03 × 20,435.57
  4. Step 4: Simplify right side
    73,026.54x = 2,238,880,791.13
  5. Step 5: Solve for x
    x = 2,238,880,791.13/73,026.54
  6. Step 6: Final answer
    x = 30,658.45

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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.