Home / 68,939.53-103,438.60-38,957.88

Finding the Fourth Proportional to 68,939.53, 103,438.60 and 38,957.88

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Solution

The fourth proportional to 68,939.53, 103,438.60 and 38,957.88 is: 58,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,939.53 : 103,438.60 = 38,957.88 : x
  2. Step 2: Convert to fraction form
    68,939.53/103,438.60 = 38,957.88/x
  3. Step 3: Cross multiply
    68,939.53x = 103,438.60 × 38,957.88
  4. Step 4: Simplify right side
    68,939.53x = 4,029,748,566.17
  5. Step 5: Solve for x
    x = 4,029,748,566.17/68,939.53
  6. Step 6: Final answer
    x = 58,453.38

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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.