Home / 82,219.09-113,450.14-49,936.91

Finding the Fourth Proportional to 82,219.09, 113,450.14 and 49,936.91

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Solution

The fourth proportional to 82,219.09, 113,450.14 and 49,936.91 is: 68,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,219.09 : 113,450.14 = 49,936.91 : x
  2. Step 2: Convert to fraction form
    82,219.09/113,450.14 = 49,936.91/x
  3. Step 3: Cross multiply
    82,219.09x = 113,450.14 × 49,936.91
  4. Step 4: Simplify right side
    82,219.09x = 5,665,349,430.67
  5. Step 5: Solve for x
    x = 5,665,349,430.67/82,219.09
  6. Step 6: Final answer
    x = 68,905.52

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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.