Home / 55,289.52-76,306.86-31,423.86

Finding the Fourth Proportional to 55,289.52, 76,306.86 and 31,423.86

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Solution

The fourth proportional to 55,289.52, 76,306.86 and 31,423.86 is: 43,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,289.52 : 76,306.86 = 31,423.86 : x
  2. Step 2: Convert to fraction form
    55,289.52/76,306.86 = 31,423.86/x
  3. Step 3: Cross multiply
    55,289.52x = 76,306.86 × 31,423.86
  4. Step 4: Simplify right side
    55,289.52x = 2,397,856,085.68
  5. Step 5: Solve for x
    x = 2,397,856,085.68/55,289.52
  6. Step 6: Final answer
    x = 43,369.09

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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.