Home / 101,027.38-139,390.44-57,419.32

Finding the Fourth Proportional to 101,027.38, 139,390.44 and 57,419.32

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Solution

The fourth proportional to 101,027.38, 139,390.44 and 57,419.32 is: 79,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,027.38 : 139,390.44 = 57,419.32 : x
  2. Step 2: Convert to fraction form
    101,027.38/139,390.44 = 57,419.32/x
  3. Step 3: Cross multiply
    101,027.38x = 139,390.44 × 57,419.32
  4. Step 4: Simplify right side
    101,027.38x = 8,003,704,279.30
  5. Step 5: Solve for x
    x = 8,003,704,279.30/101,027.38
  6. Step 6: Final answer
    x = 79,223.12

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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.