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Finding the Fourth Proportional to 99,992.80, 150,010.80 and 29,879.20

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Solution

The fourth proportional to 99,992.80, 150,010.80 and 29,879.20 is: 44,825.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,992.80 : 150,010.80 = 29,879.20 : x
  2. Step 2: Convert to fraction form
    99,992.80/150,010.80 = 29,879.20/x
  3. Step 3: Cross multiply
    99,992.80x = 150,010.80 × 29,879.20
  4. Step 4: Simplify right side
    99,992.80x = 4,482,202,695.36
  5. Step 5: Solve for x
    x = 4,482,202,695.36/99,992.80
  6. Step 6: Final answer
    x = 44,825.25

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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.