Home / 74,785.24-112,144.98-28,005.31

Finding the Fourth Proportional to 74,785.24, 112,144.98 and 28,005.31

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Solution

The fourth proportional to 74,785.24, 112,144.98 and 28,005.31 is: 41,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.24 : 112,144.98 = 28,005.31 : x
  2. Step 2: Convert to fraction form
    74,785.24/112,144.98 = 28,005.31/x
  3. Step 3: Cross multiply
    74,785.24x = 112,144.98 × 28,005.31
  4. Step 4: Simplify right side
    74,785.24x = 3,140,654,369.12
  5. Step 5: Solve for x
    x = 3,140,654,369.12/74,785.24
  6. Step 6: Final answer
    x = 41,995.65

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1.5x scale

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.