Home / 78,829.40-108,786.96-44,842.78

Finding the Fourth Proportional to 78,829.40, 108,786.96 and 44,842.78

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Solution

The fourth proportional to 78,829.40, 108,786.96 and 44,842.78 is: 61,884.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,829.40 : 108,786.96 = 44,842.78 : x
  2. Step 2: Convert to fraction form
    78,829.40/108,786.96 = 44,842.78/x
  3. Step 3: Cross multiply
    78,829.40x = 108,786.96 × 44,842.78
  4. Step 4: Simplify right side
    78,829.40x = 4,878,309,714.15
  5. Step 5: Solve for x
    x = 4,878,309,714.15/78,829.40
  6. Step 6: Final answer
    x = 61,884.39

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1.5x scale

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.