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Finding the Fourth Proportional to 72,044.36, 108,066.48 and 19,453.76

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Solution

The fourth proportional to 72,044.36, 108,066.48 and 19,453.76 is: 29,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,044.36 : 108,066.48 = 19,453.76 : x
  2. Step 2: Convert to fraction form
    72,044.36/108,066.48 = 19,453.76/x
  3. Step 3: Cross multiply
    72,044.36x = 108,066.48 × 19,453.76
  4. Step 4: Simplify right side
    72,044.36x = 2,102,299,365.96
  5. Step 5: Solve for x
    x = 2,102,299,365.96/72,044.36
  6. Step 6: Final answer
    x = 29,180.62

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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.