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Finding the Fourth Proportional to 69,000.40, 103,500.60 and 48,005.20

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Solution

The fourth proportional to 69,000.40, 103,500.60 and 48,005.20 is: 72,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,000.40 : 103,500.60 = 48,005.20 : x
  2. Step 2: Convert to fraction form
    69,000.40/103,500.60 = 48,005.20/x
  3. Step 3: Cross multiply
    69,000.40x = 103,500.60 × 48,005.20
  4. Step 4: Simplify right side
    69,000.40x = 4,968,567,003.12
  5. Step 5: Solve for x
    x = 4,968,567,003.12/69,000.40
  6. Step 6: Final answer
    x = 72,007.80

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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.