Home / 49,583.17-68,432.25-31,690.09

Finding the Fourth Proportional to 49,583.17, 68,432.25 and 31,690.09

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Solution

The fourth proportional to 49,583.17, 68,432.25 and 31,690.09 is: 43,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,583.17 : 68,432.25 = 31,690.09 : x
  2. Step 2: Convert to fraction form
    49,583.17/68,432.25 = 31,690.09/x
  3. Step 3: Cross multiply
    49,583.17x = 68,432.25 × 31,690.09
  4. Step 4: Simplify right side
    49,583.17x = 2,168,624,161.40
  5. Step 5: Solve for x
    x = 2,168,624,161.40/49,583.17
  6. Step 6: Final answer
    x = 43,737.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.