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Finding the Fourth Proportional to 65,624.60, 98,436.90 and 54,738.20

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Solution

The fourth proportional to 65,624.60, 98,436.90 and 54,738.20 is: 82,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,624.60 : 98,436.90 = 54,738.20 : x
  2. Step 2: Convert to fraction form
    65,624.60/98,436.90 = 54,738.20/x
  3. Step 3: Cross multiply
    65,624.60x = 98,436.90 × 54,738.20
  4. Step 4: Simplify right side
    65,624.60x = 5,388,258,719.58
  5. Step 5: Solve for x
    x = 5,388,258,719.58/65,624.60
  6. Step 6: Final answer
    x = 82,107.30

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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.