Home / 96,979.86-133,835.22-54,540.72

Finding the Fourth Proportional to 96,979.86, 133,835.22 and 54,540.72

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Solution

The fourth proportional to 96,979.86, 133,835.22 and 54,540.72 is: 75,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,979.86 : 133,835.22 = 54,540.72 : x
  2. Step 2: Convert to fraction form
    96,979.86/133,835.22 = 54,540.72/x
  3. Step 3: Cross multiply
    96,979.86x = 133,835.22 × 54,540.72
  4. Step 4: Simplify right side
    96,979.86x = 7,299,469,260.16
  5. Step 5: Solve for x
    x = 7,299,469,260.16/96,979.86
  6. Step 6: Final answer
    x = 75,267.89

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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.