Home / 45,786.88-68,681.23-20,809.52

Finding the Fourth Proportional to 45,786.88, 68,681.23 and 20,809.52

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Solution

The fourth proportional to 45,786.88, 68,681.23 and 20,809.52 is: 31,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,786.88 : 68,681.23 = 20,809.52 : x
  2. Step 2: Convert to fraction form
    45,786.88/68,681.23 = 20,809.52/x
  3. Step 3: Cross multiply
    45,786.88x = 68,681.23 × 20,809.52
  4. Step 4: Simplify right side
    45,786.88x = 1,429,223,033.88
  5. Step 5: Solve for x
    x = 1,429,223,033.88/45,786.88
  6. Step 6: Final answer
    x = 31,214.69

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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.