Home / 74,276.90-111,425.26-21,685.62

Finding the Fourth Proportional to 74,276.90, 111,425.26 and 21,685.62

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Solution

The fourth proportional to 74,276.90, 111,425.26 and 21,685.62 is: 32,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,276.90 : 111,425.26 = 21,685.62 : x
  2. Step 2: Convert to fraction form
    74,276.90/111,425.26 = 21,685.62/x
  3. Step 3: Cross multiply
    74,276.90x = 111,425.26 × 21,685.62
  4. Step 4: Simplify right side
    74,276.90x = 2,416,325,846.76
  5. Step 5: Solve for x
    x = 2,416,325,846.76/74,276.90
  6. Step 6: Final answer
    x = 32,531.33

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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.