Home / 91,885.20-137,795.40-41,989.20

Finding the Fourth Proportional to 91,885.20, 137,795.40 and 41,989.20

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Solution

The fourth proportional to 91,885.20, 137,795.40 and 41,989.20 is: 62,968.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,885.20 : 137,795.40 = 41,989.20 : x
  2. Step 2: Convert to fraction form
    91,885.20/137,795.40 = 41,989.20/x
  3. Step 3: Cross multiply
    91,885.20x = 137,795.40 × 41,989.20
  4. Step 4: Simplify right side
    91,885.20x = 5,785,918,609.68
  5. Step 5: Solve for x
    x = 5,785,918,609.68/91,885.20
  6. Step 6: Final answer
    x = 62,968.99

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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.