Home / 63,721.80-87,914.19-39,514.07

Finding the Fourth Proportional to 63,721.80, 87,914.19 and 39,514.07

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Solution

The fourth proportional to 63,721.80, 87,914.19 and 39,514.07 is: 54,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,721.80 : 87,914.19 = 39,514.07 : x
  2. Step 2: Convert to fraction form
    63,721.80/87,914.19 = 39,514.07/x
  3. Step 3: Cross multiply
    63,721.80x = 87,914.19 × 39,514.07
  4. Step 4: Simplify right side
    63,721.80x = 3,473,847,457.65
  5. Step 5: Solve for x
    x = 3,473,847,457.65/63,721.80
  6. Step 6: Final answer
    x = 54,515.84

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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.