Home / 78,410.09-108,198.12-44,411.81

Finding the Fourth Proportional to 78,410.09, 108,198.12 and 44,411.81

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Solution

The fourth proportional to 78,410.09, 108,198.12 and 44,411.81 is: 61,283.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,410.09 : 108,198.12 = 44,411.81 : x
  2. Step 2: Convert to fraction form
    78,410.09/108,198.12 = 44,411.81/x
  3. Step 3: Cross multiply
    78,410.09x = 108,198.12 × 44,411.81
  4. Step 4: Simplify right side
    78,410.09x = 4,805,274,347.80
  5. Step 5: Solve for x
    x = 4,805,274,347.80/78,410.09
  6. Step 6: Final answer
    x = 61,283.88

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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.