Home / 87,631,120.56-120,921,642-48,466,674.48

Finding the Fourth Proportional to 87,631,120.56, 120,921,642 and 48,466,674.48

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Solution

The fourth proportional to 87,631,120.56, 120,921,642 and 48,466,674.48 is: 66,878,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,631,120.56 : 120,921,642 = 48,466,674.48 : x
  2. Step 2: Convert to fraction form
    87,631,120.56/120,921,642 = 48,466,674.48/x
  3. Step 3: Cross multiply
    87,631,120.56x = 120,921,642 × 48,466,674.48
  4. Step 4: Simplify right side
    87,631,120.56x = 5,860,669,860,401,096
  5. Step 5: Solve for x
    x = 5,860,669,860,401,096/87,631,120.56
  6. Step 6: Final answer
    x = 66,878,864.76

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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.