Home / 57,949.84-86,963.64-20,510

Finding the Fourth Proportional to 57,949.84, 86,963.64 and 20,510

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Solution

The fourth proportional to 57,949.84, 86,963.64 and 20,510 is: 30,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,949.84 : 86,963.64 = 20,510 : x
  2. Step 2: Convert to fraction form
    57,949.84/86,963.64 = 20,510/x
  3. Step 3: Cross multiply
    57,949.84x = 86,963.64 × 20,510
  4. Step 4: Simplify right side
    57,949.84x = 1,783,624,256.40
  5. Step 5: Solve for x
    x = 1,783,624,256.40/57,949.84
  6. Step 6: Final answer
    x = 30,778.76

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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.