Home / 75,438.86-104,105.21-40,983.30

Finding the Fourth Proportional to 75,438.86, 104,105.21 and 40,983.30

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Solution

The fourth proportional to 75,438.86, 104,105.21 and 40,983.30 is: 56,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,438.86 : 104,105.21 = 40,983.30 : x
  2. Step 2: Convert to fraction form
    75,438.86/104,105.21 = 40,983.30/x
  3. Step 3: Cross multiply
    75,438.86x = 104,105.21 × 40,983.30
  4. Step 4: Simplify right side
    75,438.86x = 4,266,574,848.08
  5. Step 5: Solve for x
    x = 4,266,574,848.08/75,438.86
  6. Step 6: Final answer
    x = 56,556.73

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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.