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Finding the Fourth Proportional to 72,309.70, 108,447.06 and 27,908.14

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Solution

The fourth proportional to 72,309.70, 108,447.06 and 27,908.14 is: 41,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,309.70 : 108,447.06 = 27,908.14 : x
  2. Step 2: Convert to fraction form
    72,309.70/108,447.06 = 27,908.14/x
  3. Step 3: Cross multiply
    72,309.70x = 108,447.06 × 27,908.14
  4. Step 4: Simplify right side
    72,309.70x = 3,026,555,733.07
  5. Step 5: Solve for x
    x = 3,026,555,733.07/72,309.70
  6. Step 6: Final answer
    x = 41,855.46

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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.