Home / 91,161.90-136,803.99-31,997.73

Finding the Fourth Proportional to 91,161.90, 136,803.99 and 31,997.73

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Solution

The fourth proportional to 91,161.90, 136,803.99 and 31,997.73 is: 48,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,161.90 : 136,803.99 = 31,997.73 : x
  2. Step 2: Convert to fraction form
    91,161.90/136,803.99 = 31,997.73/x
  3. Step 3: Cross multiply
    91,161.90x = 136,803.99 × 31,997.73
  4. Step 4: Simplify right side
    91,161.90x = 4,377,417,134.94
  5. Step 5: Solve for x
    x = 4,377,417,134.94/91,161.90
  6. Step 6: Final answer
    x = 48,018.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.