Home / 58,108.35-87,133.71-20,662.79

Finding the Fourth Proportional to 58,108.35, 87,133.71 and 20,662.79

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Solution

The fourth proportional to 58,108.35, 87,133.71 and 20,662.79 is: 30,983.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,108.35 : 87,133.71 = 20,662.79 : x
  2. Step 2: Convert to fraction form
    58,108.35/87,133.71 = 20,662.79/x
  3. Step 3: Cross multiply
    58,108.35x = 87,133.71 × 20,662.79
  4. Step 4: Simplify right side
    58,108.35x = 1,800,425,115.98
  5. Step 5: Solve for x
    x = 1,800,425,115.98/58,108.35
  6. Step 6: Final answer
    x = 30,983.93

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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.