Home / 63,125.41-87,121.39-40,157.47

Finding the Fourth Proportional to 63,125.41, 87,121.39 and 40,157.47

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Solution

The fourth proportional to 63,125.41, 87,121.39 and 40,157.47 is: 55,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,125.41 : 87,121.39 = 40,157.47 : x
  2. Step 2: Convert to fraction form
    63,125.41/87,121.39 = 40,157.47/x
  3. Step 3: Cross multiply
    63,125.41x = 87,121.39 × 40,157.47
  4. Step 4: Simplify right side
    63,125.41x = 3,498,574,169.68
  5. Step 5: Solve for x
    x = 3,498,574,169.68/63,125.41
  6. Step 6: Final answer
    x = 55,422.60

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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.