Home / 78,444.42-117,716.67-28,519.73

Finding the Fourth Proportional to 78,444.42, 117,716.67 and 28,519.73

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Solution

The fourth proportional to 78,444.42, 117,716.67 and 28,519.73 is: 42,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,444.42 : 117,716.67 = 28,519.73 : x
  2. Step 2: Convert to fraction form
    78,444.42/117,716.67 = 28,519.73/x
  3. Step 3: Cross multiply
    78,444.42x = 117,716.67 × 28,519.73
  4. Step 4: Simplify right side
    78,444.42x = 3,357,247,056.32
  5. Step 5: Solve for x
    x = 3,357,247,056.32/78,444.42
  6. Step 6: Final answer
    x = 42,797.78

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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.