Home / 101,284.52-139,769.70-55,961.78

Finding the Fourth Proportional to 101,284.52, 139,769.70 and 55,961.78

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Solution

The fourth proportional to 101,284.52, 139,769.70 and 55,961.78 is: 77,225.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,284.52 : 139,769.70 = 55,961.78 : x
  2. Step 2: Convert to fraction form
    101,284.52/139,769.70 = 55,961.78/x
  3. Step 3: Cross multiply
    101,284.52x = 139,769.70 × 55,961.78
  4. Step 4: Simplify right side
    101,284.52x = 7,821,761,202.07
  5. Step 5: Solve for x
    x = 7,821,761,202.07/101,284.52
  6. Step 6: Final answer
    x = 77,225.63

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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.