Home / 73,919.14-102,008.73-40,385.86

Finding the Fourth Proportional to 73,919.14, 102,008.73 and 40,385.86

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Solution

The fourth proportional to 73,919.14, 102,008.73 and 40,385.86 is: 55,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,919.14 : 102,008.73 = 40,385.86 : x
  2. Step 2: Convert to fraction form
    73,919.14/102,008.73 = 40,385.86/x
  3. Step 3: Cross multiply
    73,919.14x = 102,008.73 × 40,385.86
  4. Step 4: Simplify right side
    73,919.14x = 4,119,710,288.56
  5. Step 5: Solve for x
    x = 4,119,710,288.56/73,919.14
  6. Step 6: Final answer
    x = 55,732.66

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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.