Home / 72,453.40-108,680.10-66,232.60

Finding the Fourth Proportional to 72,453.40, 108,680.10 and 66,232.60

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Solution

The fourth proportional to 72,453.40, 108,680.10 and 66,232.60 is: 99,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,453.40 : 108,680.10 = 66,232.60 : x
  2. Step 2: Convert to fraction form
    72,453.40/108,680.10 = 66,232.60/x
  3. Step 3: Cross multiply
    72,453.40x = 108,680.10 × 66,232.60
  4. Step 4: Simplify right side
    72,453.40x = 7,198,165,591.26
  5. Step 5: Solve for x
    x = 7,198,165,591.26/72,453.40
  6. Step 6: Final answer
    x = 99,348.90

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1.5x scale

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.