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Finding the Fourth Proportional to 73,276.80, 109,915.20 and 65,500.80

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Solution

The fourth proportional to 73,276.80, 109,915.20 and 65,500.80 is: 98,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,276.80 : 109,915.20 = 65,500.80 : x
  2. Step 2: Convert to fraction form
    73,276.80/109,915.20 = 65,500.80/x
  3. Step 3: Cross multiply
    73,276.80x = 109,915.20 × 65,500.80
  4. Step 4: Simplify right side
    73,276.80x = 7,199,533,532.16
  5. Step 5: Solve for x
    x = 7,199,533,532.16/73,276.80
  6. Step 6: Final answer
    x = 98,251.20

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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.