Home / 78,761.36-108,690.86-44,770.07

Finding the Fourth Proportional to 78,761.36, 108,690.86 and 44,770.07

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Solution

The fourth proportional to 78,761.36, 108,690.86 and 44,770.07 is: 61,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,761.36 : 108,690.86 = 44,770.07 : x
  2. Step 2: Convert to fraction form
    78,761.36/108,690.86 = 44,770.07/x
  3. Step 3: Cross multiply
    78,761.36x = 108,690.86 × 44,770.07
  4. Step 4: Simplify right side
    78,761.36x = 4,866,097,794.21
  5. Step 5: Solve for x
    x = 4,866,097,794.21/78,761.36
  6. Step 6: Final answer
    x = 61,782.80

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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.