Home / 51,976.12-77,963.10-20,803

Finding the Fourth Proportional to 51,976.12, 77,963.10 and 20,803

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Solution

The fourth proportional to 51,976.12, 77,963.10 and 20,803 is: 31,204.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,976.12 : 77,963.10 = 20,803 : x
  2. Step 2: Convert to fraction form
    51,976.12/77,963.10 = 20,803/x
  3. Step 3: Cross multiply
    51,976.12x = 77,963.10 × 20,803
  4. Step 4: Simplify right side
    51,976.12x = 1,621,866,369.30
  5. Step 5: Solve for x
    x = 1,621,866,369.30/51,976.12
  6. Step 6: Final answer
    x = 31,204.07

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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.