Home / 53,121.55-79,673.09-19,841.90

Finding the Fourth Proportional to 53,121.55, 79,673.09 and 19,841.90

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Solution

The fourth proportional to 53,121.55, 79,673.09 and 19,841.90 is: 29,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,121.55 : 79,673.09 = 19,841.90 : x
  2. Step 2: Convert to fraction form
    53,121.55/79,673.09 = 19,841.90/x
  3. Step 3: Cross multiply
    53,121.55x = 79,673.09 × 19,841.90
  4. Step 4: Simplify right side
    53,121.55x = 1,580,865,490.43
  5. Step 5: Solve for x
    x = 1,580,865,490.43/53,121.55
  6. Step 6: Final answer
    x = 29,759.40

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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.