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Finding the Fourth Proportional to 48,000.80, 71,968.80 and 25,515.20

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Solution

The fourth proportional to 48,000.80, 71,968.80 and 25,515.20 is: 38,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,000.80 : 71,968.80 = 25,515.20 : x
  2. Step 2: Convert to fraction form
    48,000.80/71,968.80 = 25,515.20/x
  3. Step 3: Cross multiply
    48,000.80x = 71,968.80 × 25,515.20
  4. Step 4: Simplify right side
    48,000.80x = 1,836,298,325.76
  5. Step 5: Solve for x
    x = 1,836,298,325.76/48,000.80
  6. Step 6: Final answer
    x = 38,255.58

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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.