Home / 76,692.96-115,067.16-26,780.45

Finding the Fourth Proportional to 76,692.96, 115,067.16 and 26,780.45

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Solution

The fourth proportional to 76,692.96, 115,067.16 and 26,780.45 is: 40,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,692.96 : 115,067.16 = 26,780.45 : x
  2. Step 2: Convert to fraction form
    76,692.96/115,067.16 = 26,780.45/x
  3. Step 3: Cross multiply
    76,692.96x = 115,067.16 × 26,780.45
  4. Step 4: Simplify right side
    76,692.96x = 3,081,549,749.69
  5. Step 5: Solve for x
    x = 3,081,549,749.69/76,692.96
  6. Step 6: Final answer
    x = 40,180.35

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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.