Home / 75,039.10-112,558.86-30,665.86

Finding the Fourth Proportional to 75,039.10, 112,558.86 and 30,665.86

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Solution

The fourth proportional to 75,039.10, 112,558.86 and 30,665.86 is: 45,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,039.10 : 112,558.86 = 30,665.86 : x
  2. Step 2: Convert to fraction form
    75,039.10/112,558.86 = 30,665.86/x
  3. Step 3: Cross multiply
    75,039.10x = 112,558.86 × 30,665.86
  4. Step 4: Simplify right side
    75,039.10x = 3,451,713,961.12
  5. Step 5: Solve for x
    x = 3,451,713,961.12/75,039.10
  6. Step 6: Final answer
    x = 45,998.87

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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.