Home / 51,857.32-77,782.22-20,261.44

Finding the Fourth Proportional to 51,857.32, 77,782.22 and 20,261.44

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Solution

The fourth proportional to 51,857.32, 77,782.22 and 20,261.44 is: 30,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,857.32 : 77,782.22 = 20,261.44 : x
  2. Step 2: Convert to fraction form
    51,857.32/77,782.22 = 20,261.44/x
  3. Step 3: Cross multiply
    51,857.32x = 77,782.22 × 20,261.44
  4. Step 4: Simplify right side
    51,857.32x = 1,575,979,783.60
  5. Step 5: Solve for x
    x = 1,575,979,783.60/51,857.32
  6. Step 6: Final answer
    x = 30,390.69

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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.