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Finding the Fourth Proportional to 64,002.80, 96,004.20 and 50,783.60

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Solution

The fourth proportional to 64,002.80, 96,004.20 and 50,783.60 is: 76,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,002.80 : 96,004.20 = 50,783.60 : x
  2. Step 2: Convert to fraction form
    64,002.80/96,004.20 = 50,783.60/x
  3. Step 3: Cross multiply
    64,002.80x = 96,004.20 × 50,783.60
  4. Step 4: Simplify right side
    64,002.80x = 4,875,438,891.12
  5. Step 5: Solve for x
    x = 4,875,438,891.12/64,002.80
  6. Step 6: Final answer
    x = 76,175.40

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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.