Home / 51,509.56-77,270.82-18,221.80

Finding the Fourth Proportional to 51,509.56, 77,270.82 and 18,221.80

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Solution

The fourth proportional to 51,509.56, 77,270.82 and 18,221.80 is: 27,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,509.56 : 77,270.82 = 18,221.80 : x
  2. Step 2: Convert to fraction form
    51,509.56/77,270.82 = 18,221.80/x
  3. Step 3: Cross multiply
    51,509.56x = 77,270.82 × 18,221.80
  4. Step 4: Simplify right side
    51,509.56x = 1,408,013,427.88
  5. Step 5: Solve for x
    x = 1,408,013,427.88/51,509.56
  6. Step 6: Final answer
    x = 27,334.99

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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.