Home / 52,780.89-79,160.39-19,478.19

Finding the Fourth Proportional to 52,780.89, 79,160.39 and 19,478.19

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Solution

The fourth proportional to 52,780.89, 79,160.39 and 19,478.19 is: 29,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,780.89 : 79,160.39 = 19,478.19 : x
  2. Step 2: Convert to fraction form
    52,780.89/79,160.39 = 19,478.19/x
  3. Step 3: Cross multiply
    52,780.89x = 79,160.39 × 19,478.19
  4. Step 4: Simplify right side
    52,780.89x = 1,541,901,462.44
  5. Step 5: Solve for x
    x = 1,541,901,462.44/52,780.89
  6. Step 6: Final answer
    x = 29,213.25

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1.5x scale

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.