Home / 81,381.60-121,983.36-41,941.44

Finding the Fourth Proportional to 81,381.60, 121,983.36 and 41,941.44

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Solution

The fourth proportional to 81,381.60, 121,983.36 and 41,941.44 is: 62,866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,381.60 : 121,983.36 = 41,941.44 : x
  2. Step 2: Convert to fraction form
    81,381.60/121,983.36 = 41,941.44/x
  3. Step 3: Cross multiply
    81,381.60x = 121,983.36 × 41,941.44
  4. Step 4: Simplify right side
    81,381.60x = 5,116,157,774.44
  5. Step 5: Solve for x
    x = 5,116,157,774.44/81,381.60
  6. Step 6: Final answer
    x = 62,866.27

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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.