Home / 91,229.42-136,857.23-28,054.86

Finding the Fourth Proportional to 91,229.42, 136,857.23 and 28,054.86

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Solution

The fourth proportional to 91,229.42, 136,857.23 and 28,054.86 is: 42,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,229.42 : 136,857.23 = 28,054.86 : x
  2. Step 2: Convert to fraction form
    91,229.42/136,857.23 = 28,054.86/x
  3. Step 3: Cross multiply
    91,229.42x = 136,857.23 × 28,054.86
  4. Step 4: Simplify right side
    91,229.42x = 3,839,509,879.35
  5. Step 5: Solve for x
    x = 3,839,509,879.35/91,229.42
  6. Step 6: Final answer
    x = 42,086.31

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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.