Home / 124,919.28-187,379.01-31,425

Finding the Fourth Proportional to 124,919.28, 187,379.01 and 31,425

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Solution

The fourth proportional to 124,919.28, 187,379.01 and 31,425 is: 47,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,919.28 : 187,379.01 = 31,425 : x
  2. Step 2: Convert to fraction form
    124,919.28/187,379.01 = 31,425/x
  3. Step 3: Cross multiply
    124,919.28x = 187,379.01 × 31,425
  4. Step 4: Simplify right side
    124,919.28x = 5,888,385,389.25
  5. Step 5: Solve for x
    x = 5,888,385,389.25/124,919.28
  6. Step 6: Final answer
    x = 47,137.52

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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.