Home / 73,913.28-102,000.42-40,379.28

Finding the Fourth Proportional to 73,913.28, 102,000.42 and 40,379.28

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Solution

The fourth proportional to 73,913.28, 102,000.42 and 40,379.28 is: 55,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,913.28 : 102,000.42 = 40,379.28 : x
  2. Step 2: Convert to fraction form
    73,913.28/102,000.42 = 40,379.28/x
  3. Step 3: Cross multiply
    73,913.28x = 102,000.42 × 40,379.28
  4. Step 4: Simplify right side
    73,913.28x = 4,118,703,519.30
  5. Step 5: Solve for x
    x = 4,118,703,519.30/73,913.28
  6. Step 6: Final answer
    x = 55,723.46

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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.