Home / 87,209.30-120,347.30-48,969.15

Finding the Fourth Proportional to 87,209.30, 120,347.30 and 48,969.15

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Solution

The fourth proportional to 87,209.30, 120,347.30 and 48,969.15 is: 67,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,209.30 : 120,347.30 = 48,969.15 : x
  2. Step 2: Convert to fraction form
    87,209.30/120,347.30 = 48,969.15/x
  3. Step 3: Cross multiply
    87,209.30x = 120,347.30 × 48,969.15
  4. Step 4: Simplify right side
    87,209.30x = 5,893,304,985.80
  5. Step 5: Solve for x
    x = 5,893,304,985.80/87,209.30
  6. Step 6: Final answer
    x = 67,576.57

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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.