Home / 77,147.38-115,730.39-27,217.23

Finding the Fourth Proportional to 77,147.38, 115,730.39 and 27,217.23

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Solution

The fourth proportional to 77,147.38, 115,730.39 and 27,217.23 is: 40,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,147.38 : 115,730.39 = 27,217.23 : x
  2. Step 2: Convert to fraction form
    77,147.38/115,730.39 = 27,217.23/x
  3. Step 3: Cross multiply
    77,147.38x = 115,730.39 × 27,217.23
  4. Step 4: Simplify right side
    77,147.38x = 3,149,860,642.62
  5. Step 5: Solve for x
    x = 3,149,860,642.62/77,147.38
  6. Step 6: Final answer
    x = 40,829.13

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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.