Home / 70,094.11-96,728.62-39,878.78

Finding the Fourth Proportional to 70,094.11, 96,728.62 and 39,878.78

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Solution

The fourth proportional to 70,094.11, 96,728.62 and 39,878.78 is: 55,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,094.11 : 96,728.62 = 39,878.78 : x
  2. Step 2: Convert to fraction form
    70,094.11/96,728.62 = 39,878.78/x
  3. Step 3: Cross multiply
    70,094.11x = 96,728.62 × 39,878.78
  4. Step 4: Simplify right side
    70,094.11x = 3,857,419,356.68
  5. Step 5: Solve for x
    x = 3,857,419,356.68/70,094.11
  6. Step 6: Final answer
    x = 55,032.01

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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.