Home / 91,067.14-136,600.71-28,742.50

Finding the Fourth Proportional to 91,067.14, 136,600.71 and 28,742.50

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Solution

The fourth proportional to 91,067.14, 136,600.71 and 28,742.50 is: 43,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,067.14 : 136,600.71 = 28,742.50 : x
  2. Step 2: Convert to fraction form
    91,067.14/136,600.71 = 28,742.50/x
  3. Step 3: Cross multiply
    91,067.14x = 136,600.71 × 28,742.50
  4. Step 4: Simplify right side
    91,067.14x = 3,926,245,907.18
  5. Step 5: Solve for x
    x = 3,926,245,907.18/91,067.14
  6. Step 6: Final answer
    x = 43,113.75

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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.