Home / 81,039.98-121,563.75-24,877.82

Finding the Fourth Proportional to 81,039.98, 121,563.75 and 24,877.82

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Solution

The fourth proportional to 81,039.98, 121,563.75 and 24,877.82 is: 37,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,039.98 : 121,563.75 = 24,877.82 : x
  2. Step 2: Convert to fraction form
    81,039.98/121,563.75 = 24,877.82/x
  3. Step 3: Cross multiply
    81,039.98x = 121,563.75 × 24,877.82
  4. Step 4: Simplify right side
    81,039.98x = 3,024,241,091.03
  5. Step 5: Solve for x
    x = 3,024,241,091.03/81,039.98
  6. Step 6: Final answer
    x = 37,317.89

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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.