Home / 55,000.98-82,501.79-19,939.73

Finding the Fourth Proportional to 55,000.98, 82,501.79 and 19,939.73

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Solution

The fourth proportional to 55,000.98, 82,501.79 and 19,939.73 is: 29,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,000.98 : 82,501.79 = 19,939.73 : x
  2. Step 2: Convert to fraction form
    55,000.98/82,501.79 = 19,939.73/x
  3. Step 3: Cross multiply
    55,000.98x = 82,501.79 × 19,939.73
  4. Step 4: Simplify right side
    55,000.98x = 1,645,062,904.91
  5. Step 5: Solve for x
    x = 1,645,062,904.91/55,000.98
  6. Step 6: Final answer
    x = 29,909.70

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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.