Home / 84,584.44-126,878.74-28,425.36

Finding the Fourth Proportional to 84,584.44, 126,878.74 and 28,425.36

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Solution

The fourth proportional to 84,584.44, 126,878.74 and 28,425.36 is: 42,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,584.44 : 126,878.74 = 28,425.36 : x
  2. Step 2: Convert to fraction form
    84,584.44/126,878.74 = 28,425.36/x
  3. Step 3: Cross multiply
    84,584.44x = 126,878.74 × 28,425.36
  4. Step 4: Simplify right side
    84,584.44x = 3,606,573,860.85
  5. Step 5: Solve for x
    x = 3,606,573,860.85/84,584.44
  6. Step 6: Final answer
    x = 42,638.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.