Home / 51,412.28-77,089.74-15,863.49

Finding the Fourth Proportional to 51,412.28, 77,089.74 and 15,863.49

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Solution

The fourth proportional to 51,412.28, 77,089.74 and 15,863.49 is: 23,786.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,412.28 : 77,089.74 = 15,863.49 : x
  2. Step 2: Convert to fraction form
    51,412.28/77,089.74 = 15,863.49/x
  3. Step 3: Cross multiply
    51,412.28x = 77,089.74 × 15,863.49
  4. Step 4: Simplify right side
    51,412.28x = 1,222,912,319.59
  5. Step 5: Solve for x
    x = 1,222,912,319.59/51,412.28
  6. Step 6: Final answer
    x = 23,786.39

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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.