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Finding the Fourth Proportional to 67,630.80, 101,446.20 and 66,464.40

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Solution

The fourth proportional to 67,630.80, 101,446.20 and 66,464.40 is: 99,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,630.80 : 101,446.20 = 66,464.40 : x
  2. Step 2: Convert to fraction form
    67,630.80/101,446.20 = 66,464.40/x
  3. Step 3: Cross multiply
    67,630.80x = 101,446.20 × 66,464.40
  4. Step 4: Simplify right side
    67,630.80x = 6,742,560,815.28
  5. Step 5: Solve for x
    x = 6,742,560,815.28/67,630.80
  6. Step 6: Final answer
    x = 99,696.60

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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.