Home / 74,053.36-111,079.92-18,649.36

Finding the Fourth Proportional to 74,053.36, 111,079.92 and 18,649.36

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Solution

The fourth proportional to 74,053.36, 111,079.92 and 18,649.36 is: 27,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,053.36 : 111,079.92 = 18,649.36 : x
  2. Step 2: Convert to fraction form
    74,053.36/111,079.92 = 18,649.36/x
  3. Step 3: Cross multiply
    74,053.36x = 111,079.92 × 18,649.36
  4. Step 4: Simplify right side
    74,053.36x = 2,071,569,416.85
  5. Step 5: Solve for x
    x = 2,071,569,416.85/74,053.36
  6. Step 6: Final answer
    x = 27,974.01

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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.