Home / 68,321.20-94,247.40-55,588.62

Finding the Fourth Proportional to 68,321.20, 94,247.40 and 55,588.62

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Solution

The fourth proportional to 68,321.20, 94,247.40 and 55,588.62 is: 76,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,321.20 : 94,247.40 = 55,588.62 : x
  2. Step 2: Convert to fraction form
    68,321.20/94,247.40 = 55,588.62/x
  3. Step 3: Cross multiply
    68,321.20x = 94,247.40 × 55,588.62
  4. Step 4: Simplify right side
    68,321.20x = 5,239,082,904.59
  5. Step 5: Solve for x
    x = 5,239,082,904.59/68,321.20
  6. Step 6: Final answer
    x = 76,683.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.