Home / 76,021.12-114,022.23-31,642.03

Finding the Fourth Proportional to 76,021.12, 114,022.23 and 31,642.03

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Solution

The fourth proportional to 76,021.12, 114,022.23 and 31,642.03 is: 47,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,021.12 : 114,022.23 = 31,642.03 : x
  2. Step 2: Convert to fraction form
    76,021.12/114,022.23 = 31,642.03/x
  3. Step 3: Cross multiply
    76,021.12x = 114,022.23 × 31,642.03
  4. Step 4: Simplify right side
    76,021.12x = 3,607,894,822.33
  5. Step 5: Solve for x
    x = 3,607,894,822.33/76,021.12
  6. Step 6: Final answer
    x = 47,459.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.