Home / 52,561.20-78,855.12-15,120.47

Finding the Fourth Proportional to 52,561.20, 78,855.12 and 15,120.47

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Solution

The fourth proportional to 52,561.20, 78,855.12 and 15,120.47 is: 22,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,561.20 : 78,855.12 = 15,120.47 : x
  2. Step 2: Convert to fraction form
    52,561.20/78,855.12 = 15,120.47/x
  3. Step 3: Cross multiply
    52,561.20x = 78,855.12 × 15,120.47
  4. Step 4: Simplify right side
    52,561.20x = 1,192,326,673.44
  5. Step 5: Solve for x
    x = 1,192,326,673.44/52,561.20
  6. Step 6: Final answer
    x = 22,684.54

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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.