Home / 72,591.42-100,173.56-40,761.66

Finding the Fourth Proportional to 72,591.42, 100,173.56 and 40,761.66

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Solution

The fourth proportional to 72,591.42, 100,173.56 and 40,761.66 is: 56,249.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,591.42 : 100,173.56 = 40,761.66 : x
  2. Step 2: Convert to fraction form
    72,591.42/100,173.56 = 40,761.66/x
  3. Step 3: Cross multiply
    72,591.42x = 100,173.56 × 40,761.66
  4. Step 4: Simplify right side
    72,591.42x = 4,083,240,593.71
  5. Step 5: Solve for x
    x = 4,083,240,593.71/72,591.42
  6. Step 6: Final answer
    x = 56,249.63

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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.