Home / 80,802.22-121,194.06-30,881.21

Finding the Fourth Proportional to 80,802.22, 121,194.06 and 30,881.21

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Solution

The fourth proportional to 80,802.22, 121,194.06 and 30,881.21 is: 46,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,802.22 : 121,194.06 = 30,881.21 : x
  2. Step 2: Convert to fraction form
    80,802.22/121,194.06 = 30,881.21/x
  3. Step 3: Cross multiply
    80,802.22x = 121,194.06 × 30,881.21
  4. Step 4: Simplify right side
    80,802.22x = 3,742,618,914.63
  5. Step 5: Solve for x
    x = 3,742,618,914.63/80,802.22
  6. Step 6: Final answer
    x = 46,318.27

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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.