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Finding the Fourth Proportional to 84,004.97, 126,011.12 and 39,068.51

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Solution

The fourth proportional to 84,004.97, 126,011.12 and 39,068.51 is: 58,604.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,004.97 : 126,011.12 = 39,068.51 : x
  2. Step 2: Convert to fraction form
    84,004.97/126,011.12 = 39,068.51/x
  3. Step 3: Cross multiply
    84,004.97x = 126,011.12 × 39,068.51
  4. Step 4: Simplify right side
    84,004.97x = 4,923,065,876.43
  5. Step 5: Solve for x
    x = 4,923,065,876.43/84,004.97
  6. Step 6: Final answer
    x = 58,604.46

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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.