Home / 101,089.36-139,503.30-55,767.44

Finding the Fourth Proportional to 101,089.36, 139,503.30 and 55,767.44

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Solution

The fourth proportional to 101,089.36, 139,503.30 and 55,767.44 is: 76,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,089.36 : 139,503.30 = 55,767.44 : x
  2. Step 2: Convert to fraction form
    101,089.36/139,503.30 = 55,767.44/x
  3. Step 3: Cross multiply
    101,089.36x = 139,503.30 × 55,767.44
  4. Step 4: Simplify right side
    101,089.36x = 7,779,741,912.55
  5. Step 5: Solve for x
    x = 7,779,741,912.55/101,089.36
  6. Step 6: Final answer
    x = 76,959.06

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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.