Home / 50,305.09-75,457.37-12,865.11

Finding the Fourth Proportional to 50,305.09, 75,457.37 and 12,865.11

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Solution

The fourth proportional to 50,305.09, 75,457.37 and 12,865.11 is: 19,297.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,305.09 : 75,457.37 = 12,865.11 : x
  2. Step 2: Convert to fraction form
    50,305.09/75,457.37 = 12,865.11/x
  3. Step 3: Cross multiply
    50,305.09x = 75,457.37 × 12,865.11
  4. Step 4: Simplify right side
    50,305.09x = 970,766,955.91
  5. Step 5: Solve for x
    x = 970,766,955.91/50,305.09
  6. Step 6: Final answer
    x = 19,297.59

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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.