Home / 91,669.40-137,231.82-49,990.04

Finding the Fourth Proportional to 91,669.40, 137,231.82 and 49,990.04

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Solution

The fourth proportional to 91,669.40, 137,231.82 and 49,990.04 is: 74,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,669.40 : 137,231.82 = 49,990.04 : x
  2. Step 2: Convert to fraction form
    91,669.40/137,231.82 = 49,990.04/x
  3. Step 3: Cross multiply
    91,669.40x = 137,231.82 × 49,990.04
  4. Step 4: Simplify right side
    91,669.40x = 6,860,224,171.07
  5. Step 5: Solve for x
    x = 6,860,224,171.07/91,669.40
  6. Step 6: Final answer
    x = 74,836.58

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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.