Home / 78,850.15-108,809.40-44,855.43

Finding the Fourth Proportional to 78,850.15, 108,809.40 and 44,855.43

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Solution

The fourth proportional to 78,850.15, 108,809.40 and 44,855.43 is: 61,898.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,850.15 : 108,809.40 = 44,855.43 : x
  2. Step 2: Convert to fraction form
    78,850.15/108,809.40 = 44,855.43/x
  3. Step 3: Cross multiply
    78,850.15x = 108,809.40 × 44,855.43
  4. Step 4: Simplify right side
    78,850.15x = 4,880,692,824.12
  5. Step 5: Solve for x
    x = 4,880,692,824.12/78,850.15
  6. Step 6: Final answer
    x = 61,898.34

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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.