Home / 90,690.90-136,036.66-27,511.56

Finding the Fourth Proportional to 90,690.90, 136,036.66 and 27,511.56

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Solution

The fourth proportional to 90,690.90, 136,036.66 and 27,511.56 is: 41,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,690.90 : 136,036.66 = 27,511.56 : x
  2. Step 2: Convert to fraction form
    90,690.90/136,036.66 = 27,511.56/x
  3. Step 3: Cross multiply
    90,690.90x = 136,036.66 × 27,511.56
  4. Step 4: Simplify right side
    90,690.90x = 3,742,580,716.59
  5. Step 5: Solve for x
    x = 3,742,580,716.59/90,690.90
  6. Step 6: Final answer
    x = 41,267.44

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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.