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Finding the Fourth Proportional to 84,032.36, 126,068.12 and 27,868.36

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Solution

The fourth proportional to 84,032.36, 126,068.12 and 27,868.36 is: 41,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,032.36 : 126,068.12 = 27,868.36 : x
  2. Step 2: Convert to fraction form
    84,032.36/126,068.12 = 27,868.36/x
  3. Step 3: Cross multiply
    84,032.36x = 126,068.12 × 27,868.36
  4. Step 4: Simplify right side
    84,032.36x = 3,513,311,752.68
  5. Step 5: Solve for x
    x = 3,513,311,752.68/84,032.36
  6. Step 6: Final answer
    x = 41,809.03

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1.5x scale

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.