Home / 87,107.89-120,245.67-58,851.85

Finding the Fourth Proportional to 87,107.89, 120,245.67 and 58,851.85

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Solution

The fourth proportional to 87,107.89, 120,245.67 and 58,851.85 is: 81,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,107.89 : 120,245.67 = 58,851.85 : x
  2. Step 2: Convert to fraction form
    87,107.89/120,245.67 = 58,851.85/x
  3. Step 3: Cross multiply
    87,107.89x = 120,245.67 × 58,851.85
  4. Step 4: Simplify right side
    87,107.89x = 7,076,680,133.99
  5. Step 5: Solve for x
    x = 7,076,680,133.99/87,107.89
  6. Step 6: Final answer
    x = 81,240.40

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1.5x scale

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.