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Finding the Fourth Proportional to 64,500.80, 96,751.20 and 60,612.80

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Solution

The fourth proportional to 64,500.80, 96,751.20 and 60,612.80 is: 90,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,500.80 : 96,751.20 = 60,612.80 : x
  2. Step 2: Convert to fraction form
    64,500.80/96,751.20 = 60,612.80/x
  3. Step 3: Cross multiply
    64,500.80x = 96,751.20 × 60,612.80
  4. Step 4: Simplify right side
    64,500.80x = 5,864,361,135.36
  5. Step 5: Solve for x
    x = 5,864,361,135.36/64,500.80
  6. Step 6: Final answer
    x = 90,919.20

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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.