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Finding the Fourth Proportional to 81,794.62, 112,806.60 and 56,341.58

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Solution

The fourth proportional to 81,794.62, 112,806.60 and 56,341.58 is: 77,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,794.62 : 112,806.60 = 56,341.58 : x
  2. Step 2: Convert to fraction form
    81,794.62/112,806.60 = 56,341.58/x
  3. Step 3: Cross multiply
    81,794.62x = 112,806.60 × 56,341.58
  4. Step 4: Simplify right side
    81,794.62x = 6,355,702,078.43
  5. Step 5: Solve for x
    x = 6,355,702,078.43/81,794.62
  6. Step 6: Final answer
    x = 77,703.18

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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.