Home / 72,128.44-99,517.48-49,473.04

Finding the Fourth Proportional to 72,128.44, 99,517.48 and 49,473.04

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Solution

The fourth proportional to 72,128.44, 99,517.48 and 49,473.04 is: 68,259.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,128.44 : 99,517.48 = 49,473.04 : x
  2. Step 2: Convert to fraction form
    72,128.44/99,517.48 = 49,473.04/x
  3. Step 3: Cross multiply
    72,128.44x = 99,517.48 × 49,473.04
  4. Step 4: Simplify right side
    72,128.44x = 4,923,432,268.74
  5. Step 5: Solve for x
    x = 4,923,432,268.74/72,128.44
  6. Step 6: Final answer
    x = 68,259.24

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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.