Home / 84,380.64-116,540.88-57,476.40

Finding the Fourth Proportional to 84,380.64, 116,540.88 and 57,476.40

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Solution

The fourth proportional to 84,380.64, 116,540.88 and 57,476.40 is: 79,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,380.64 : 116,540.88 = 57,476.40 : x
  2. Step 2: Convert to fraction form
    84,380.64/116,540.88 = 57,476.40/x
  3. Step 3: Cross multiply
    84,380.64x = 116,540.88 × 57,476.40
  4. Step 4: Simplify right side
    84,380.64x = 6,698,350,235.23
  5. Step 5: Solve for x
    x = 6,698,350,235.23/84,380.64
  6. Step 6: Final answer
    x = 79,382.55

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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.