Home / 63,581.64-87,743.03-39,722.18

Finding the Fourth Proportional to 63,581.64, 87,743.03 and 39,722.18

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Solution

The fourth proportional to 63,581.64, 87,743.03 and 39,722.18 is: 54,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,581.64 : 87,743.03 = 39,722.18 : x
  2. Step 2: Convert to fraction form
    63,581.64/87,743.03 = 39,722.18/x
  3. Step 3: Cross multiply
    63,581.64x = 87,743.03 × 39,722.18
  4. Step 4: Simplify right side
    63,581.64x = 3,485,343,794.08
  5. Step 5: Solve for x
    x = 3,485,343,794.08/63,581.64
  6. Step 6: Final answer
    x = 54,816.83

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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.