Home / 78,840.09-108,789.75-44,852.90

Finding the Fourth Proportional to 78,840.09, 108,789.75 and 44,852.90

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Solution

The fourth proportional to 78,840.09, 108,789.75 and 44,852.90 is: 61,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,840.09 : 108,789.75 = 44,852.90 : x
  2. Step 2: Convert to fraction form
    78,840.09/108,789.75 = 44,852.90/x
  3. Step 3: Cross multiply
    78,840.09x = 108,789.75 × 44,852.90
  4. Step 4: Simplify right side
    78,840.09x = 4,879,535,233.83
  5. Step 5: Solve for x
    x = 4,879,535,233.83/78,840.09
  6. Step 6: Final answer
    x = 61,891.55

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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.