Home / 87,114.89-120,091.29-61,576.19

Finding the Fourth Proportional to 87,114.89, 120,091.29 and 61,576.19

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Solution

The fourth proportional to 87,114.89, 120,091.29 and 61,576.19 is: 84,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,114.89 : 120,091.29 = 61,576.19 : x
  2. Step 2: Convert to fraction form
    87,114.89/120,091.29 = 61,576.19/x
  3. Step 3: Cross multiply
    87,114.89x = 120,091.29 × 61,576.19
  4. Step 4: Simplify right side
    87,114.89x = 7,394,764,506.07
  5. Step 5: Solve for x
    x = 7,394,764,506.07/87,114.89
  6. Step 6: Final answer
    x = 84,885.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.