Home / 78,230.92-117,334.48-25,639.24

Finding the Fourth Proportional to 78,230.92, 117,334.48 and 25,639.24

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Solution

The fourth proportional to 78,230.92, 117,334.48 and 25,639.24 is: 38,454.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,230.92 : 117,334.48 = 25,639.24 : x
  2. Step 2: Convert to fraction form
    78,230.92/117,334.48 = 25,639.24/x
  3. Step 3: Cross multiply
    78,230.92x = 117,334.48 × 25,639.24
  4. Step 4: Simplify right side
    78,230.92x = 3,008,366,893.00
  5. Step 5: Solve for x
    x = 3,008,366,893.00/78,230.92
  6. Step 6: Final answer
    x = 38,454.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.