Home / 51,728.85-77,599.35-18,453.65

Finding the Fourth Proportional to 51,728.85, 77,599.35 and 18,453.65

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Solution

The fourth proportional to 51,728.85, 77,599.35 and 18,453.65 is: 27,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,728.85 : 77,599.35 = 18,453.65 : x
  2. Step 2: Convert to fraction form
    51,728.85/77,599.35 = 18,453.65/x
  3. Step 3: Cross multiply
    51,728.85x = 77,599.35 × 18,453.65
  4. Step 4: Simplify right side
    51,728.85x = 1,431,990,857.13
  5. Step 5: Solve for x
    x = 1,431,990,857.13/51,728.85
  6. Step 6: Final answer
    x = 27,682.63

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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.