Home / 75,128.38-103,682.22-43,299.34

Finding the Fourth Proportional to 75,128.38, 103,682.22 and 43,299.34

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Solution

The fourth proportional to 75,128.38, 103,682.22 and 43,299.34 is: 59,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.38 : 103,682.22 = 43,299.34 : x
  2. Step 2: Convert to fraction form
    75,128.38/103,682.22 = 43,299.34/x
  3. Step 3: Cross multiply
    75,128.38x = 103,682.22 × 43,299.34
  4. Step 4: Simplify right side
    75,128.38x = 4,489,371,695.73
  5. Step 5: Solve for x
    x = 4,489,371,695.73/75,128.38
  6. Step 6: Final answer
    x = 59,756.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.