Home / 61,311.75-91,917.54-31,738.11

Finding the Fourth Proportional to 61,311.75, 91,917.54 and 31,738.11

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Solution

The fourth proportional to 61,311.75, 91,917.54 and 31,738.11 is: 47,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,311.75 : 91,917.54 = 31,738.11 : x
  2. Step 2: Convert to fraction form
    61,311.75/91,917.54 = 31,738.11/x
  3. Step 3: Cross multiply
    61,311.75x = 91,917.54 × 31,738.11
  4. Step 4: Simplify right side
    61,311.75x = 2,917,288,995.45
  5. Step 5: Solve for x
    x = 2,917,288,995.45/61,311.75
  6. Step 6: Final answer
    x = 47,581.24

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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.