Home / 55,910.04-83,879.64-20,850

Finding the Fourth Proportional to 55,910.04, 83,879.64 and 20,850

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Solution

The fourth proportional to 55,910.04, 83,879.64 and 20,850 is: 31,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,910.04 : 83,879.64 = 20,850 : x
  2. Step 2: Convert to fraction form
    55,910.04/83,879.64 = 20,850/x
  3. Step 3: Cross multiply
    55,910.04x = 83,879.64 × 20,850
  4. Step 4: Simplify right side
    55,910.04x = 1,748,890,494
  5. Step 5: Solve for x
    x = 1,748,890,494/55,910.04
  6. Step 6: Final answer
    x = 31,280.44

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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.