Home / 63,182.43-87,211.08-38,990.79

Finding the Fourth Proportional to 63,182.43, 87,211.08 and 38,990.79

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Solution

The fourth proportional to 63,182.43, 87,211.08 and 38,990.79 is: 53,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,182.43 : 87,211.08 = 38,990.79 : x
  2. Step 2: Convert to fraction form
    63,182.43/87,211.08 = 38,990.79/x
  3. Step 3: Cross multiply
    63,182.43x = 87,211.08 × 38,990.79
  4. Step 4: Simplify right side
    63,182.43x = 3,400,428,905.95
  5. Step 5: Solve for x
    x = 3,400,428,905.95/63,182.43
  6. Step 6: Final answer
    x = 53,819.22

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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.