Home / 76,889.52-106,108.92-45,081.36

Finding the Fourth Proportional to 76,889.52, 106,108.92 and 45,081.36

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Solution

The fourth proportional to 76,889.52, 106,108.92 and 45,081.36 is: 62,213.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,889.52 : 106,108.92 = 45,081.36 : x
  2. Step 2: Convert to fraction form
    76,889.52/106,108.92 = 45,081.36/x
  3. Step 3: Cross multiply
    76,889.52x = 106,108.92 × 45,081.36
  4. Step 4: Simplify right side
    76,889.52x = 4,783,534,421.73
  5. Step 5: Solve for x
    x = 4,783,534,421.73/76,889.52
  6. Step 6: Final answer
    x = 62,213.09

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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.