Home / 63,721.92-87,914.36-39,514.20

Finding the Fourth Proportional to 63,721.92, 87,914.36 and 39,514.20

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Solution

The fourth proportional to 63,721.92, 87,914.36 and 39,514.20 is: 54,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,721.92 : 87,914.36 = 39,514.20 : x
  2. Step 2: Convert to fraction form
    63,721.92/87,914.36 = 39,514.20/x
  3. Step 3: Cross multiply
    63,721.92x = 87,914.36 × 39,514.20
  4. Step 4: Simplify right side
    63,721.92x = 3,473,865,373.02
  5. Step 5: Solve for x
    x = 3,473,865,373.02/63,721.92
  6. Step 6: Final answer
    x = 54,516.02

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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.