Home / 74,916.24-112,391.12-28,169.52

Finding the Fourth Proportional to 74,916.24, 112,391.12 and 28,169.52

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Solution

The fourth proportional to 74,916.24, 112,391.12 and 28,169.52 is: 42,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.24 : 112,391.12 = 28,169.52 : x
  2. Step 2: Convert to fraction form
    74,916.24/112,391.12 = 28,169.52/x
  3. Step 3: Cross multiply
    74,916.24x = 112,391.12 × 28,169.52
  4. Step 4: Simplify right side
    74,916.24x = 3,166,003,902.66
  5. Step 5: Solve for x
    x = 3,166,003,902.66/74,916.24
  6. Step 6: Final answer
    x = 42,260.58

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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.