Home / 78,839.84-108,778.20-44,848.64

Finding the Fourth Proportional to 78,839.84, 108,778.20 and 44,848.64

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Solution

The fourth proportional to 78,839.84, 108,778.20 and 44,848.64 is: 61,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,839.84 : 108,778.20 = 44,848.64 : x
  2. Step 2: Convert to fraction form
    78,839.84/108,778.20 = 44,848.64/x
  3. Step 3: Cross multiply
    78,839.84x = 108,778.20 × 44,848.64
  4. Step 4: Simplify right side
    78,839.84x = 4,878,554,331.65
  5. Step 5: Solve for x
    x = 4,878,554,331.65/78,839.84
  6. Step 6: Final answer
    x = 61,879.30

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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.