Home / 50,147.14-75,128.44-31,423.69

Finding the Fourth Proportional to 50,147.14, 75,128.44 and 31,423.69

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Solution

The fourth proportional to 50,147.14, 75,128.44 and 31,423.69 is: 47,077.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,147.14 : 75,128.44 = 31,423.69 : x
  2. Step 2: Convert to fraction form
    50,147.14/75,128.44 = 31,423.69/x
  3. Step 3: Cross multiply
    50,147.14x = 75,128.44 × 31,423.69
  4. Step 4: Simplify right side
    50,147.14x = 2,360,812,433.10
  5. Step 5: Solve for x
    x = 2,360,812,433.10/50,147.14
  6. Step 6: Final answer
    x = 47,077.71

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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.