Home / 75,250.64-103,629-73,683.92

Finding the Fourth Proportional to 75,250.64, 103,629 and 73,683.92

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Solution

The fourth proportional to 75,250.64, 103,629 and 73,683.92 is: 101,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,250.64 : 103,629 = 73,683.92 : x
  2. Step 2: Convert to fraction form
    75,250.64/103,629 = 73,683.92/x
  3. Step 3: Cross multiply
    75,250.64x = 103,629 × 73,683.92
  4. Step 4: Simplify right side
    75,250.64x = 7,635,790,945.68
  5. Step 5: Solve for x
    x = 7,635,790,945.68/75,250.64
  6. Step 6: Final answer
    x = 101,471.44

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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.