Home / 68,726.28-103,129.06-37,136.42

Finding the Fourth Proportional to 68,726.28, 103,129.06 and 37,136.42

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Solution

The fourth proportional to 68,726.28, 103,129.06 and 37,136.42 is: 55,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,726.28 : 103,129.06 = 37,136.42 : x
  2. Step 2: Convert to fraction form
    68,726.28/103,129.06 = 37,136.42/x
  3. Step 3: Cross multiply
    68,726.28x = 103,129.06 × 37,136.42
  4. Step 4: Simplify right side
    68,726.28x = 3,829,844,086.37
  5. Step 5: Solve for x
    x = 3,829,844,086.37/68,726.28
  6. Step 6: Final answer
    x = 55,726.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.