Home / 87,126.76-120,234.95-49,401.01

Finding the Fourth Proportional to 87,126.76, 120,234.95 and 49,401.01

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Solution

The fourth proportional to 87,126.76, 120,234.95 and 49,401.01 is: 68,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,126.76 : 120,234.95 = 49,401.01 : x
  2. Step 2: Convert to fraction form
    87,126.76/120,234.95 = 49,401.01/x
  3. Step 3: Cross multiply
    87,126.76x = 120,234.95 × 49,401.01
  4. Step 4: Simplify right side
    87,126.76x = 5,939,727,967.30
  5. Step 5: Solve for x
    x = 5,939,727,967.30/87,126.76
  6. Step 6: Final answer
    x = 68,173.41

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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.