Home / 78,738.93-108,661.77-48,544.20

Finding the Fourth Proportional to 78,738.93, 108,661.77 and 48,544.20

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Solution

The fourth proportional to 78,738.93, 108,661.77 and 48,544.20 is: 66,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,738.93 : 108,661.77 = 48,544.20 : x
  2. Step 2: Convert to fraction form
    78,738.93/108,661.77 = 48,544.20/x
  3. Step 3: Cross multiply
    78,738.93x = 108,661.77 × 48,544.20
  4. Step 4: Simplify right side
    78,738.93x = 5,274,898,695.23
  5. Step 5: Solve for x
    x = 5,274,898,695.23/78,738.93
  6. Step 6: Final answer
    x = 66,992.26

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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.