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Finding the Fourth Proportional to 95,684.50, 143,561.31 and 30,020.50

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Solution

The fourth proportional to 95,684.50, 143,561.31 and 30,020.50 is: 45,041.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,684.50 : 143,561.31 = 30,020.50 : x
  2. Step 2: Convert to fraction form
    95,684.50/143,561.31 = 30,020.50/x
  3. Step 3: Cross multiply
    95,684.50x = 143,561.31 × 30,020.50
  4. Step 4: Simplify right side
    95,684.50x = 4,309,782,306.86
  5. Step 5: Solve for x
    x = 4,309,782,306.86/95,684.50
  6. Step 6: Final answer
    x = 45,041.59

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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.