Home / 101,054.10-139,456.90-55,733.44

Finding the Fourth Proportional to 101,054.10, 139,456.90 and 55,733.44

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Solution

The fourth proportional to 101,054.10, 139,456.90 and 55,733.44 is: 76,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,054.10 : 139,456.90 = 55,733.44 : x
  2. Step 2: Convert to fraction form
    101,054.10/139,456.90 = 55,733.44/x
  3. Step 3: Cross multiply
    101,054.10x = 139,456.90 × 55,733.44
  4. Step 4: Simplify right side
    101,054.10x = 7,772,412,768.74
  5. Step 5: Solve for x
    x = 7,772,412,768.74/101,054.10
  6. Step 6: Final answer
    x = 76,913.38

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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.