Home / 84,448.38-126,630.09-28,268.94

Finding the Fourth Proportional to 84,448.38, 126,630.09 and 28,268.94

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Solution

The fourth proportional to 84,448.38, 126,630.09 and 28,268.94 is: 42,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,448.38 : 126,630.09 = 28,268.94 : x
  2. Step 2: Convert to fraction form
    84,448.38/126,630.09 = 28,268.94/x
  3. Step 3: Cross multiply
    84,448.38x = 126,630.09 × 28,268.94
  4. Step 4: Simplify right side
    84,448.38x = 3,579,698,416.40
  5. Step 5: Solve for x
    x = 3,579,698,416.40/84,448.38
  6. Step 6: Final answer
    x = 42,389.19

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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.