Home / 87,401.30-120,582.69-51,573.38

Finding the Fourth Proportional to 87,401.30, 120,582.69 and 51,573.38

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Solution

The fourth proportional to 87,401.30, 120,582.69 and 51,573.38 is: 71,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,401.30 : 120,582.69 = 51,573.38 : x
  2. Step 2: Convert to fraction form
    87,401.30/120,582.69 = 51,573.38/x
  3. Step 3: Cross multiply
    87,401.30x = 120,582.69 × 51,573.38
  4. Step 4: Simplify right side
    87,401.30x = 6,218,856,892.79
  5. Step 5: Solve for x
    x = 6,218,856,892.79/87,401.30
  6. Step 6: Final answer
    x = 71,152.91

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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.