Home / 79,442.06-119,162.96-20,277.72

Finding the Fourth Proportional to 79,442.06, 119,162.96 and 20,277.72

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Solution

The fourth proportional to 79,442.06, 119,162.96 and 20,277.72 is: 30,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,442.06 : 119,162.96 = 20,277.72 : x
  2. Step 2: Convert to fraction form
    79,442.06/119,162.96 = 20,277.72/x
  3. Step 3: Cross multiply
    79,442.06x = 119,162.96 × 20,277.72
  4. Step 4: Simplify right side
    79,442.06x = 2,416,353,137.25
  5. Step 5: Solve for x
    x = 2,416,353,137.25/79,442.06
  6. Step 6: Final answer
    x = 30,416.55

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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.