Home / 55,111.05-76,054.13-31,237.22

Finding the Fourth Proportional to 55,111.05, 76,054.13 and 31,237.22

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Solution

The fourth proportional to 55,111.05, 76,054.13 and 31,237.22 is: 43,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.05 : 76,054.13 = 31,237.22 : x
  2. Step 2: Convert to fraction form
    55,111.05/76,054.13 = 31,237.22/x
  3. Step 3: Cross multiply
    55,111.05x = 76,054.13 × 31,237.22
  4. Step 4: Simplify right side
    55,111.05x = 2,375,719,054.26
  5. Step 5: Solve for x
    x = 2,375,719,054.26/55,111.05
  6. Step 6: Final answer
    x = 43,107.85

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1.5x scale

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.