Home / 86,493.90-119,255.54-71,126.75

Finding the Fourth Proportional to 86,493.90, 119,255.54 and 71,126.75

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Solution

The fourth proportional to 86,493.90, 119,255.54 and 71,126.75 is: 98,067.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,493.90 : 119,255.54 = 71,126.75 : x
  2. Step 2: Convert to fraction form
    86,493.90/119,255.54 = 71,126.75/x
  3. Step 3: Cross multiply
    86,493.90x = 119,255.54 × 71,126.75
  4. Step 4: Simplify right side
    86,493.90x = 8,482,259,274.82
  5. Step 5: Solve for x
    x = 8,482,259,274.82/86,493.90
  6. Step 6: Final answer
    x = 98,067.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.