Home / 87,209.55-120,347.65-48,969.40

Finding the Fourth Proportional to 87,209.55, 120,347.65 and 48,969.40

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Solution

The fourth proportional to 87,209.55, 120,347.65 and 48,969.40 is: 67,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,209.55 : 120,347.65 = 48,969.40 : x
  2. Step 2: Convert to fraction form
    87,209.55/120,347.65 = 48,969.40/x
  3. Step 3: Cross multiply
    87,209.55x = 120,347.65 × 48,969.40
  4. Step 4: Simplify right side
    87,209.55x = 5,893,351,922.45
  5. Step 5: Solve for x
    x = 5,893,351,922.45/87,209.55
  6. Step 6: Final answer
    x = 67,576.91

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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.