Home / 55,259.89-82,902.79-21,981.85

Finding the Fourth Proportional to 55,259.89, 82,902.79 and 21,981.85

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Solution

The fourth proportional to 55,259.89, 82,902.79 and 21,981.85 is: 32,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,259.89 : 82,902.79 = 21,981.85 : x
  2. Step 2: Convert to fraction form
    55,259.89/82,902.79 = 21,981.85/x
  3. Step 3: Cross multiply
    55,259.89x = 82,902.79 × 21,981.85
  4. Step 4: Simplify right side
    55,259.89x = 1,822,356,514.58
  5. Step 5: Solve for x
    x = 1,822,356,514.58/55,259.89
  6. Step 6: Final answer
    x = 32,977.93

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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.