Home / 50,858.15-76,290.66-18,840.20

Finding the Fourth Proportional to 50,858.15, 76,290.66 and 18,840.20

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Solution

The fourth proportional to 50,858.15, 76,290.66 and 18,840.20 is: 28,261.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,858.15 : 76,290.66 = 18,840.20 : x
  2. Step 2: Convert to fraction form
    50,858.15/76,290.66 = 18,840.20/x
  3. Step 3: Cross multiply
    50,858.15x = 76,290.66 × 18,840.20
  4. Step 4: Simplify right side
    50,858.15x = 1,437,330,911.08
  5. Step 5: Solve for x
    x = 1,437,330,911.08/50,858.15
  6. Step 6: Final answer
    x = 28,261.57

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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.