Home / 56,728.82-85,145.76-28,668.62

Finding the Fourth Proportional to 56,728.82, 85,145.76 and 28,668.62

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Solution

The fourth proportional to 56,728.82, 85,145.76 and 28,668.62 is: 43,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,728.82 : 85,145.76 = 28,668.62 : x
  2. Step 2: Convert to fraction form
    56,728.82/85,145.76 = 28,668.62/x
  3. Step 3: Cross multiply
    56,728.82x = 85,145.76 × 28,668.62
  4. Step 4: Simplify right side
    56,728.82x = 2,441,011,012.32
  5. Step 5: Solve for x
    x = 2,441,011,012.32/56,728.82
  6. Step 6: Final answer
    x = 43,029.47

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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.