Home / 84,872.55-117,056.52-54,660.36

Finding the Fourth Proportional to 84,872.55, 117,056.52 and 54,660.36

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Solution

The fourth proportional to 84,872.55, 117,056.52 and 54,660.36 is: 75,387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,872.55 : 117,056.52 = 54,660.36 : x
  2. Step 2: Convert to fraction form
    84,872.55/117,056.52 = 54,660.36/x
  3. Step 3: Cross multiply
    84,872.55x = 117,056.52 × 54,660.36
  4. Step 4: Simplify right side
    84,872.55x = 6,398,351,523.55
  5. Step 5: Solve for x
    x = 6,398,351,523.55/84,872.55
  6. Step 6: Final answer
    x = 75,387.76

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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.