Home / 101,055.10-139,458.28-55,734.44

Finding the Fourth Proportional to 101,055.10, 139,458.28 and 55,734.44

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Solution

The fourth proportional to 101,055.10, 139,458.28 and 55,734.44 is: 76,914.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,055.10 : 139,458.28 = 55,734.44 : x
  2. Step 2: Convert to fraction form
    101,055.10/139,458.28 = 55,734.44/x
  3. Step 3: Cross multiply
    101,055.10x = 139,458.28 × 55,734.44
  4. Step 4: Simplify right side
    101,055.10x = 7,772,629,139.16
  5. Step 5: Solve for x
    x = 7,772,629,139.16/101,055.10
  6. Step 6: Final answer
    x = 76,914.76

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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.