Home / 84,786.94-116,981.98-54,589.74

Finding the Fourth Proportional to 84,786.94, 116,981.98 and 54,589.74

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Solution

The fourth proportional to 84,786.94, 116,981.98 and 54,589.74 is: 75,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,786.94 : 116,981.98 = 54,589.74 : x
  2. Step 2: Convert to fraction form
    84,786.94/116,981.98 = 54,589.74/x
  3. Step 3: Cross multiply
    84,786.94x = 116,981.98 × 54,589.74
  4. Step 4: Simplify right side
    84,786.94x = 6,386,015,872.89
  5. Step 5: Solve for x
    x = 6,386,015,872.89/84,786.94
  6. Step 6: Final answer
    x = 75,318.39

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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.