Home / 77,085.58-115,545.42-50,421.52

Finding the Fourth Proportional to 77,085.58, 115,545.42 and 50,421.52

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Solution

The fourth proportional to 77,085.58, 115,545.42 and 50,421.52 is: 75,578.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,085.58 : 115,545.42 = 50,421.52 : x
  2. Step 2: Convert to fraction form
    77,085.58/115,545.42 = 50,421.52/x
  3. Step 3: Cross multiply
    77,085.58x = 115,545.42 × 50,421.52
  4. Step 4: Simplify right side
    77,085.58x = 5,825,975,705.44
  5. Step 5: Solve for x
    x = 5,825,975,705.44/77,085.58
  6. Step 6: Final answer
    x = 75,578.02

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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.