Home / 91,649.12-137,457.20-41,717.60

Finding the Fourth Proportional to 91,649.12, 137,457.20 and 41,717.60

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Solution

The fourth proportional to 91,649.12, 137,457.20 and 41,717.60 is: 62,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,649.12 : 137,457.20 = 41,717.60 : x
  2. Step 2: Convert to fraction form
    91,649.12/137,457.20 = 41,717.60/x
  3. Step 3: Cross multiply
    91,649.12x = 137,457.20 × 41,717.60
  4. Step 4: Simplify right side
    91,649.12x = 5,734,384,486.72
  5. Step 5: Solve for x
    x = 5,734,384,486.72/91,649.12
  6. Step 6: Final answer
    x = 62,568.90

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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.