Home / 51,786.28-77,678.88-16,725.16

Finding the Fourth Proportional to 51,786.28, 77,678.88 and 16,725.16

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Solution

The fourth proportional to 51,786.28, 77,678.88 and 16,725.16 is: 25,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,786.28 : 77,678.88 = 16,725.16 : x
  2. Step 2: Convert to fraction form
    51,786.28/77,678.88 = 16,725.16/x
  3. Step 3: Cross multiply
    51,786.28x = 77,678.88 × 16,725.16
  4. Step 4: Simplify right side
    51,786.28x = 1,299,191,696.62
  5. Step 5: Solve for x
    x = 1,299,191,696.62/51,786.28
  6. Step 6: Final answer
    x = 25,087.57

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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.