Home / 72,773.07-100,426.68-40,942

Finding the Fourth Proportional to 72,773.07, 100,426.68 and 40,942

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Solution

The fourth proportional to 72,773.07, 100,426.68 and 40,942 is: 56,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,773.07 : 100,426.68 = 40,942 : x
  2. Step 2: Convert to fraction form
    72,773.07/100,426.68 = 40,942/x
  3. Step 3: Cross multiply
    72,773.07x = 100,426.68 × 40,942
  4. Step 4: Simplify right side
    72,773.07x = 4,111,669,132.56
  5. Step 5: Solve for x
    x = 4,111,669,132.56/72,773.07
  6. Step 6: Final answer
    x = 56,499.87

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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.