Home / 70,127.20-96,784.68-39,906.64

Finding the Fourth Proportional to 70,127.20, 96,784.68 and 39,906.64

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Solution

The fourth proportional to 70,127.20, 96,784.68 and 39,906.64 is: 55,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,127.20 : 96,784.68 = 39,906.64 : x
  2. Step 2: Convert to fraction form
    70,127.20/96,784.68 = 39,906.64/x
  3. Step 3: Cross multiply
    70,127.20x = 96,784.68 × 39,906.64
  4. Step 4: Simplify right side
    70,127.20x = 3,862,351,382.28
  5. Step 5: Solve for x
    x = 3,862,351,382.28/70,127.20
  6. Step 6: Final answer
    x = 55,076.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.