Home / 55,184.33-76,149.09-30,979.74

Finding the Fourth Proportional to 55,184.33, 76,149.09 and 30,979.74

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Solution

The fourth proportional to 55,184.33, 76,149.09 and 30,979.74 is: 42,749.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,184.33 : 76,149.09 = 30,979.74 : x
  2. Step 2: Convert to fraction form
    55,184.33/76,149.09 = 30,979.74/x
  3. Step 3: Cross multiply
    55,184.33x = 76,149.09 × 30,979.74
  4. Step 4: Simplify right side
    55,184.33x = 2,359,079,009.44
  5. Step 5: Solve for x
    x = 2,359,079,009.44/55,184.33
  6. Step 6: Final answer
    x = 42,749.08

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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.