Home / 81,053.33-111,868.11-48,349.76

Finding the Fourth Proportional to 81,053.33, 111,868.11 and 48,349.76

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Solution

The fourth proportional to 81,053.33, 111,868.11 and 48,349.76 is: 66,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,053.33 : 111,868.11 = 48,349.76 : x
  2. Step 2: Convert to fraction form
    81,053.33/111,868.11 = 48,349.76/x
  3. Step 3: Cross multiply
    81,053.33x = 111,868.11 × 48,349.76
  4. Step 4: Simplify right side
    81,053.33x = 5,408,795,710.81
  5. Step 5: Solve for x
    x = 5,408,795,710.81/81,053.33
  6. Step 6: Final answer
    x = 66,731.32

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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.