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Finding the Fourth Proportional to 81,493.63, 112,484.66 and 49,223.12

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Solution

The fourth proportional to 81,493.63, 112,484.66 and 49,223.12 is: 67,942.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,493.63 : 112,484.66 = 49,223.12 : x
  2. Step 2: Convert to fraction form
    81,493.63/112,484.66 = 49,223.12/x
  3. Step 3: Cross multiply
    81,493.63x = 112,484.66 × 49,223.12
  4. Step 4: Simplify right side
    81,493.63x = 5,536,845,385.68
  5. Step 5: Solve for x
    x = 5,536,845,385.68/81,493.63
  6. Step 6: Final answer
    x = 67,942.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.