Home / 81,741.95-122,609.52-28,446.14

Finding the Fourth Proportional to 81,741.95, 122,609.52 and 28,446.14

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Solution

The fourth proportional to 81,741.95, 122,609.52 and 28,446.14 is: 42,668.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,741.95 : 122,609.52 = 28,446.14 : x
  2. Step 2: Convert to fraction form
    81,741.95/122,609.52 = 28,446.14/x
  3. Step 3: Cross multiply
    81,741.95x = 122,609.52 × 28,446.14
  4. Step 4: Simplify right side
    81,741.95x = 3,487,766,958.21
  5. Step 5: Solve for x
    x = 3,487,766,958.21/81,741.95
  6. Step 6: Final answer
    x = 42,668.02

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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.