Home / 53,330.69-79,969.91-31,149.65

Finding the Fourth Proportional to 53,330.69, 79,969.91 and 31,149.65

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Solution

The fourth proportional to 53,330.69, 79,969.91 and 31,149.65 is: 46,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,330.69 : 79,969.91 = 31,149.65 : x
  2. Step 2: Convert to fraction form
    53,330.69/79,969.91 = 31,149.65/x
  3. Step 3: Cross multiply
    53,330.69x = 79,969.91 × 31,149.65
  4. Step 4: Simplify right side
    53,330.69x = 2,491,034,151.43
  5. Step 5: Solve for x
    x = 2,491,034,151.43/53,330.69
  6. Step 6: Final answer
    x = 46,709.21

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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.