Home / 90,084.83-135,021.71-36,743.52

Finding the Fourth Proportional to 90,084.83, 135,021.71 and 36,743.52

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Solution

The fourth proportional to 90,084.83, 135,021.71 and 36,743.52 is: 55,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,084.83 : 135,021.71 = 36,743.52 : x
  2. Step 2: Convert to fraction form
    90,084.83/135,021.71 = 36,743.52/x
  3. Step 3: Cross multiply
    90,084.83x = 135,021.71 × 36,743.52
  4. Step 4: Simplify right side
    90,084.83x = 4,961,173,396.67
  5. Step 5: Solve for x
    x = 4,961,173,396.67/90,084.83
  6. Step 6: Final answer
    x = 55,072.24

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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.