Home / 74,379.04-102,645.44-40,845.04

Finding the Fourth Proportional to 74,379.04, 102,645.44 and 40,845.04

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Solution

The fourth proportional to 74,379.04, 102,645.44 and 40,845.04 is: 56,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,379.04 : 102,645.44 = 40,845.04 : x
  2. Step 2: Convert to fraction form
    74,379.04/102,645.44 = 40,845.04/x
  3. Step 3: Cross multiply
    74,379.04x = 102,645.44 × 40,845.04
  4. Step 4: Simplify right side
    74,379.04x = 4,192,557,102.62
  5. Step 5: Solve for x
    x = 4,192,557,102.62/74,379.04
  6. Step 6: Final answer
    x = 56,367.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.