Home / 53,205.59-79,759.37-18,120.85

Finding the Fourth Proportional to 53,205.59, 79,759.37 and 18,120.85

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Solution

The fourth proportional to 53,205.59, 79,759.37 and 18,120.85 is: 27,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,205.59 : 79,759.37 = 18,120.85 : x
  2. Step 2: Convert to fraction form
    53,205.59/79,759.37 = 18,120.85/x
  3. Step 3: Cross multiply
    53,205.59x = 79,759.37 × 18,120.85
  4. Step 4: Simplify right side
    53,205.59x = 1,445,307,425.77
  5. Step 5: Solve for x
    x = 1,445,307,425.77/53,205.59
  6. Step 6: Final answer
    x = 27,164.58

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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.