Home / 77,221.38-115,613.64-49,071.66

Finding the Fourth Proportional to 77,221.38, 115,613.64 and 49,071.66

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Solution

The fourth proportional to 77,221.38, 115,613.64 and 49,071.66 is: 73,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,221.38 : 115,613.64 = 49,071.66 : x
  2. Step 2: Convert to fraction form
    77,221.38/115,613.64 = 49,071.66/x
  3. Step 3: Cross multiply
    77,221.38x = 115,613.64 × 49,071.66
  4. Step 4: Simplify right side
    77,221.38x = 5,673,353,233.44
  5. Step 5: Solve for x
    x = 5,673,353,233.44/77,221.38
  6. Step 6: Final answer
    x = 73,468.68

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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.