Home / 84,452.63-126,678.94-31,849.81

Finding the Fourth Proportional to 84,452.63, 126,678.94 and 31,849.81

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Solution

The fourth proportional to 84,452.63, 126,678.94 and 31,849.81 is: 47,774.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,452.63 : 126,678.94 = 31,849.81 : x
  2. Step 2: Convert to fraction form
    84,452.63/126,678.94 = 31,849.81/x
  3. Step 3: Cross multiply
    84,452.63x = 126,678.94 × 31,849.81
  4. Step 4: Simplify right side
    84,452.63x = 4,034,699,773.68
  5. Step 5: Solve for x
    x = 4,034,699,773.68/84,452.63
  6. Step 6: Final answer
    x = 47,774.71

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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.