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Finding the Fourth Proportional to 74,315.80, 111,473.70 and 29,919.70

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Solution

The fourth proportional to 74,315.80, 111,473.70 and 29,919.70 is: 44,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,315.80 : 111,473.70 = 29,919.70 : x
  2. Step 2: Convert to fraction form
    74,315.80/111,473.70 = 29,919.70/x
  3. Step 3: Cross multiply
    74,315.80x = 111,473.70 × 29,919.70
  4. Step 4: Simplify right side
    74,315.80x = 3,335,259,661.89
  5. Step 5: Solve for x
    x = 3,335,259,661.89/74,315.80
  6. Step 6: Final answer
    x = 44,879.55

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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.