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Finding the Fourth Proportional to 84,007.97, 126,015.62 and 39,071.51

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Solution

The fourth proportional to 84,007.97, 126,015.62 and 39,071.51 is: 58,608.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,007.97 : 126,015.62 = 39,071.51 : x
  2. Step 2: Convert to fraction form
    84,007.97/126,015.62 = 39,071.51/x
  3. Step 3: Cross multiply
    84,007.97x = 126,015.62 × 39,071.51
  4. Step 4: Simplify right side
    84,007.97x = 4,923,619,731.55
  5. Step 5: Solve for x
    x = 4,923,619,731.55/84,007.97
  6. Step 6: Final answer
    x = 58,608.96

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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.