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Finding the Fourth Proportional to 76,485.92, 114,740.56 and 39,025.56

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Solution

The fourth proportional to 76,485.92, 114,740.56 and 39,025.56 is: 58,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,485.92 : 114,740.56 = 39,025.56 : x
  2. Step 2: Convert to fraction form
    76,485.92/114,740.56 = 39,025.56/x
  3. Step 3: Cross multiply
    76,485.92x = 114,740.56 × 39,025.56
  4. Step 4: Simplify right side
    76,485.92x = 4,477,814,608.71
  5. Step 5: Solve for x
    x = 4,477,814,608.71/76,485.92
  6. Step 6: Final answer
    x = 58,544.30

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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.