Home / 56,711.57-85,119.86-28,651.37

Finding the Fourth Proportional to 56,711.57, 85,119.86 and 28,651.37

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Solution

The fourth proportional to 56,711.57, 85,119.86 and 28,651.37 is: 43,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,711.57 : 85,119.86 = 28,651.37 : x
  2. Step 2: Convert to fraction form
    56,711.57/85,119.86 = 28,651.37/x
  3. Step 3: Cross multiply
    56,711.57x = 85,119.86 × 28,651.37
  4. Step 4: Simplify right side
    56,711.57x = 2,438,800,728.04
  5. Step 5: Solve for x
    x = 2,438,800,728.04/56,711.57
  6. Step 6: Final answer
    x = 43,003.59

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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.