Home / 84,643.10-116,860.62-54,480.84

Finding the Fourth Proportional to 84,643.10, 116,860.62 and 54,480.84

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Solution

The fourth proportional to 84,643.10, 116,860.62 and 54,480.84 is: 75,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,643.10 : 116,860.62 = 54,480.84 : x
  2. Step 2: Convert to fraction form
    84,643.10/116,860.62 = 54,480.84/x
  3. Step 3: Cross multiply
    84,643.10x = 116,860.62 × 54,480.84
  4. Step 4: Simplify right side
    84,643.10x = 6,366,664,740.52
  5. Step 5: Solve for x
    x = 6,366,664,740.52/84,643.10
  6. Step 6: Final answer
    x = 75,217.76

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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.