Home / 76,074.32-114,102.84-20,674.64

Finding the Fourth Proportional to 76,074.32, 114,102.84 and 20,674.64

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Solution

The fourth proportional to 76,074.32, 114,102.84 and 20,674.64 is: 31,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,074.32 : 114,102.84 = 20,674.64 : x
  2. Step 2: Convert to fraction form
    76,074.32/114,102.84 = 20,674.64/x
  3. Step 3: Cross multiply
    76,074.32x = 114,102.84 × 20,674.64
  4. Step 4: Simplify right side
    76,074.32x = 2,359,035,139.98
  5. Step 5: Solve for x
    x = 2,359,035,139.98/76,074.32
  6. Step 6: Final answer
    x = 31,009.61

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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.