Home / 55,742.51-76,902.77-31,856.38

Finding the Fourth Proportional to 55,742.51, 76,902.77 and 31,856.38

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Solution

The fourth proportional to 55,742.51, 76,902.77 and 31,856.38 is: 43,949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,742.51 : 76,902.77 = 31,856.38 : x
  2. Step 2: Convert to fraction form
    55,742.51/76,902.77 = 31,856.38/x
  3. Step 3: Cross multiply
    55,742.51x = 76,902.77 × 31,856.38
  4. Step 4: Simplify right side
    55,742.51x = 2,449,843,751.56
  5. Step 5: Solve for x
    x = 2,449,843,751.56/55,742.51
  6. Step 6: Final answer
    x = 43,949.29

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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.