Home / 74,922.72-112,400.48-28,175.60

Finding the Fourth Proportional to 74,922.72, 112,400.48 and 28,175.60

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Solution

The fourth proportional to 74,922.72, 112,400.48 and 28,175.60 is: 42,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,922.72 : 112,400.48 = 28,175.60 : x
  2. Step 2: Convert to fraction form
    74,922.72/112,400.48 = 28,175.60/x
  3. Step 3: Cross multiply
    74,922.72x = 112,400.48 × 28,175.60
  4. Step 4: Simplify right side
    74,922.72x = 3,166,950,964.29
  5. Step 5: Solve for x
    x = 3,166,950,964.29/74,922.72
  6. Step 6: Final answer
    x = 42,269.57

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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.