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Finding the Fourth Proportional to 84,004.06, 126,006.10 and 28,600.06

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Solution

The fourth proportional to 84,004.06, 126,006.10 and 28,600.06 is: 42,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,004.06 : 126,006.10 = 28,600.06 : x
  2. Step 2: Convert to fraction form
    84,004.06/126,006.10 = 28,600.06/x
  3. Step 3: Cross multiply
    84,004.06x = 126,006.10 × 28,600.06
  4. Step 4: Simplify right side
    84,004.06x = 3,603,782,020.37
  5. Step 5: Solve for x
    x = 3,603,782,020.37/84,004.06
  6. Step 6: Final answer
    x = 42,900.09

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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.