Home / 57,134.27-85,668.59-30,447.40

Finding the Fourth Proportional to 57,134.27, 85,668.59 and 30,447.40

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Solution

The fourth proportional to 57,134.27, 85,668.59 and 30,447.40 is: 45,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,134.27 : 85,668.59 = 30,447.40 : x
  2. Step 2: Convert to fraction form
    57,134.27/85,668.59 = 30,447.40/x
  3. Step 3: Cross multiply
    57,134.27x = 85,668.59 × 30,447.40
  4. Step 4: Simplify right side
    57,134.27x = 2,608,385,678.48
  5. Step 5: Solve for x
    x = 2,608,385,678.48/57,134.27
  6. Step 6: Final answer
    x = 45,653.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.