Home / 78,767.13-108,705.11-44,786.28

Finding the Fourth Proportional to 78,767.13, 108,705.11 and 44,786.28

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Solution

The fourth proportional to 78,767.13, 108,705.11 and 44,786.28 is: 61,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,767.13 : 108,705.11 = 44,786.28 : x
  2. Step 2: Convert to fraction form
    78,767.13/108,705.11 = 44,786.28/x
  3. Step 3: Cross multiply
    78,767.13x = 108,705.11 × 44,786.28
  4. Step 4: Simplify right side
    78,767.13x = 4,868,497,493.89
  5. Step 5: Solve for x
    x = 4,868,497,493.89/78,767.13
  6. Step 6: Final answer
    x = 61,808.75

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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.