Home / 51,344.50-77,016.75-18,512.50

Finding the Fourth Proportional to 51,344.50, 77,016.75 and 18,512.50

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Solution

The fourth proportional to 51,344.50, 77,016.75 and 18,512.50 is: 27,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,344.50 : 77,016.75 = 18,512.50 : x
  2. Step 2: Convert to fraction form
    51,344.50/77,016.75 = 18,512.50/x
  3. Step 3: Cross multiply
    51,344.50x = 77,016.75 × 18,512.50
  4. Step 4: Simplify right side
    51,344.50x = 1,425,772,584.38
  5. Step 5: Solve for x
    x = 1,425,772,584.38/51,344.50
  6. Step 6: Final answer
    x = 27,768.75

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1.5x scale

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.