Home / 82,401.24-123,295.68-49,139.40

Finding the Fourth Proportional to 82,401.24, 123,295.68 and 49,139.40

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Solution

The fourth proportional to 82,401.24, 123,295.68 and 49,139.40 is: 73,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,401.24 : 123,295.68 = 49,139.40 : x
  2. Step 2: Convert to fraction form
    82,401.24/123,295.68 = 49,139.40/x
  3. Step 3: Cross multiply
    82,401.24x = 123,295.68 × 49,139.40
  4. Step 4: Simplify right side
    82,401.24x = 6,058,675,737.79
  5. Step 5: Solve for x
    x = 6,058,675,737.79/82,401.24
  6. Step 6: Final answer
    x = 73,526.51

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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.