Home / 82,450.71-123,692.47-26,289.01

Finding the Fourth Proportional to 82,450.71, 123,692.47 and 26,289.01

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Solution

The fourth proportional to 82,450.71, 123,692.47 and 26,289.01 is: 39,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,450.71 : 123,692.47 = 26,289.01 : x
  2. Step 2: Convert to fraction form
    82,450.71/123,692.47 = 26,289.01/x
  3. Step 3: Cross multiply
    82,450.71x = 123,692.47 × 26,289.01
  4. Step 4: Simplify right side
    82,450.71x = 3,251,751,973.88
  5. Step 5: Solve for x
    x = 3,251,751,973.88/82,450.71
  6. Step 6: Final answer
    x = 39,438.74

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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.