Home / 78,539.22-108,410.81-48,325.82

Finding the Fourth Proportional to 78,539.22, 108,410.81 and 48,325.82

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Solution

The fourth proportional to 78,539.22, 108,410.81 and 48,325.82 is: 66,706.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,539.22 : 108,410.81 = 48,325.82 : x
  2. Step 2: Convert to fraction form
    78,539.22/108,410.81 = 48,325.82/x
  3. Step 3: Cross multiply
    78,539.22x = 108,410.81 × 48,325.82
  4. Step 4: Simplify right side
    78,539.22x = 5,239,040,506.43
  5. Step 5: Solve for x
    x = 5,239,040,506.43/78,539.22
  6. Step 6: Final answer
    x = 66,706.04

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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.