Home / 80,584.00-120,284.46-74,646.29

Finding the Fourth Proportional to 80,584.00, 120,284.46 and 74,646.29

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Solution

The fourth proportional to 80,584.00, 120,284.46 and 74,646.29 is: 111,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,584.00 : 120,284.46 = 74,646.29 : x
  2. Step 2: Convert to fraction form
    80,584.00/120,284.46 = 74,646.29/x
  3. Step 3: Cross multiply
    80,584.00x = 120,284.46 × 74,646.29
  4. Step 4: Simplify right side
    80,584.00x = 8,978,788,984.36
  5. Step 5: Solve for x
    x = 8,978,788,984.36/80,584.00
  6. Step 6: Final answer
    x = 111,421.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.