Home / 45,394.08-68,081.40-19,091.76

Finding the Fourth Proportional to 45,394.08, 68,081.40 and 19,091.76

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Solution

The fourth proportional to 45,394.08, 68,081.40 and 19,091.76 is: 28,633.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,394.08 : 68,081.40 = 19,091.76 : x
  2. Step 2: Convert to fraction form
    45,394.08/68,081.40 = 19,091.76/x
  3. Step 3: Cross multiply
    45,394.08x = 68,081.40 × 19,091.76
  4. Step 4: Simplify right side
    45,394.08x = 1,299,793,749.26
  5. Step 5: Solve for x
    x = 1,299,793,749.26/45,394.08
  6. Step 6: Final answer
    x = 28,633.55

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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.