Home / 55,785.43-76,958.12-33,111.55

Finding the Fourth Proportional to 55,785.43, 76,958.12 and 33,111.55

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Solution

The fourth proportional to 55,785.43, 76,958.12 and 33,111.55 is: 45,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,785.43 : 76,958.12 = 33,111.55 : x
  2. Step 2: Convert to fraction form
    55,785.43/76,958.12 = 33,111.55/x
  3. Step 3: Cross multiply
    55,785.43x = 76,958.12 × 33,111.55
  4. Step 4: Simplify right side
    55,785.43x = 2,548,202,528.67
  5. Step 5: Solve for x
    x = 2,548,202,528.67/55,785.43
  6. Step 6: Final answer
    x = 45,678.64

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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.