Home / 81,784.98-122,677.32-25,629.39

Finding the Fourth Proportional to 81,784.98, 122,677.32 and 25,629.39

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Solution

The fourth proportional to 81,784.98, 122,677.32 and 25,629.39 is: 38,444.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,784.98 : 122,677.32 = 25,629.39 : x
  2. Step 2: Convert to fraction form
    81,784.98/122,677.32 = 25,629.39/x
  3. Step 3: Cross multiply
    81,784.98x = 122,677.32 × 25,629.39
  4. Step 4: Simplify right side
    81,784.98x = 3,144,144,878.43
  5. Step 5: Solve for x
    x = 3,144,144,878.43/81,784.98
  6. Step 6: Final answer
    x = 38,444.04

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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.