Home / 51,613.20-77,421.42-18,332.73

Finding the Fourth Proportional to 51,613.20, 77,421.42 and 18,332.73

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Solution

The fourth proportional to 51,613.20, 77,421.42 and 18,332.73 is: 27,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,613.20 : 77,421.42 = 18,332.73 : x
  2. Step 2: Convert to fraction form
    51,613.20/77,421.42 = 18,332.73/x
  3. Step 3: Cross multiply
    51,613.20x = 77,421.42 × 18,332.73
  4. Step 4: Simplify right side
    51,613.20x = 1,419,345,989.08
  5. Step 5: Solve for x
    x = 1,419,345,989.08/51,613.20
  6. Step 6: Final answer
    x = 27,499.67

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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.