Home / 51,378.20-77,075.40-16,321.40

Finding the Fourth Proportional to 51,378.20, 77,075.40 and 16,321.40

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Solution

The fourth proportional to 51,378.20, 77,075.40 and 16,321.40 is: 24,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378.20 : 77,075.40 = 16,321.40 : x
  2. Step 2: Convert to fraction form
    51,378.20/77,075.40 = 16,321.40/x
  3. Step 3: Cross multiply
    51,378.20x = 77,075.40 × 16,321.40
  4. Step 4: Simplify right side
    51,378.20x = 1,257,978,433.56
  5. Step 5: Solve for x
    x = 1,257,978,433.56/51,378.20
  6. Step 6: Final answer
    x = 24,484.67

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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.