Home / 84,386.94-126,554.88-28,212.64

Finding the Fourth Proportional to 84,386.94, 126,554.88 and 28,212.64

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Solution

The fourth proportional to 84,386.94, 126,554.88 and 28,212.64 is: 42,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,386.94 : 126,554.88 = 28,212.64 : x
  2. Step 2: Convert to fraction form
    84,386.94/126,554.88 = 28,212.64/x
  3. Step 3: Cross multiply
    84,386.94x = 126,554.88 × 28,212.64
  4. Step 4: Simplify right side
    84,386.94x = 3,570,447,269.68
  5. Step 5: Solve for x
    x = 3,570,447,269.68/84,386.94
  6. Step 6: Final answer
    x = 42,310.42

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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.