Home / 78,317.32-108,078.42-44,327.56

Finding the Fourth Proportional to 78,317.32, 108,078.42 and 44,327.56

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Solution

The fourth proportional to 78,317.32, 108,078.42 and 44,327.56 is: 61,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,317.32 : 108,078.42 = 44,327.56 : x
  2. Step 2: Convert to fraction form
    78,317.32/108,078.42 = 44,327.56/x
  3. Step 3: Cross multiply
    78,317.32x = 108,078.42 × 44,327.56
  4. Step 4: Simplify right side
    78,317.32x = 4,790,852,647.26
  5. Step 5: Solve for x
    x = 4,790,852,647.26/78,317.32
  6. Step 6: Final answer
    x = 61,172.33

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1.5x scale

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.