Home / 55,139.64-76,068.30-33,906.36

Finding the Fourth Proportional to 55,139.64, 76,068.30 and 33,906.36

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Solution

The fourth proportional to 55,139.64, 76,068.30 and 33,906.36 is: 46,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,139.64 : 76,068.30 = 33,906.36 : x
  2. Step 2: Convert to fraction form
    55,139.64/76,068.30 = 33,906.36/x
  3. Step 3: Cross multiply
    55,139.64x = 76,068.30 × 33,906.36
  4. Step 4: Simplify right side
    55,139.64x = 2,579,199,164.39
  5. Step 5: Solve for x
    x = 2,579,199,164.39/55,139.64
  6. Step 6: Final answer
    x = 46,775.77

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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.