Home / 55,278.67-76,286.62-31,409.39

Finding the Fourth Proportional to 55,278.67, 76,286.62 and 31,409.39

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Solution

The fourth proportional to 55,278.67, 76,286.62 and 31,409.39 is: 43,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.67 : 76,286.62 = 31,409.39 : x
  2. Step 2: Convert to fraction form
    55,278.67/76,286.62 = 31,409.39/x
  3. Step 3: Cross multiply
    55,278.67x = 76,286.62 × 31,409.39
  4. Step 4: Simplify right side
    55,278.67x = 2,396,116,199.36
  5. Step 5: Solve for x
    x = 2,396,116,199.36/55,278.67
  6. Step 6: Final answer
    x = 43,346.13

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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.