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Finding the Fourth Proportional to 78,880.20, 108,857.42 and 44,893.81

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Solution

The fourth proportional to 78,880.20, 108,857.42 and 44,893.81 is: 61,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880.20 : 108,857.42 = 44,893.81 : x
  2. Step 2: Convert to fraction form
    78,880.20/108,857.42 = 44,893.81/x
  3. Step 3: Cross multiply
    78,880.20x = 108,857.42 × 44,893.81
  4. Step 4: Simplify right side
    78,880.20x = 4,887,024,330.57
  5. Step 5: Solve for x
    x = 4,887,024,330.57/78,880.20
  6. Step 6: Final answer
    x = 61,955.02

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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.