Home / 90,733.96-136,118.76-31,571.56

Finding the Fourth Proportional to 90,733.96, 136,118.76 and 31,571.56

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Solution

The fourth proportional to 90,733.96, 136,118.76 and 31,571.56 is: 47,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,733.96 : 136,118.76 = 31,571.56 : x
  2. Step 2: Convert to fraction form
    90,733.96/136,118.76 = 31,571.56/x
  3. Step 3: Cross multiply
    90,733.96x = 136,118.76 × 31,571.56
  4. Step 4: Simplify right side
    90,733.96x = 4,297,481,598.47
  5. Step 5: Solve for x
    x = 4,297,481,598.47/90,733.96
  6. Step 6: Final answer
    x = 47,363.54

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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.