Home / 83,482.15-115,222.77-76,757.12

Finding the Fourth Proportional to 83,482.15, 115,222.77 and 76,757.12

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Solution

The fourth proportional to 83,482.15, 115,222.77 and 76,757.12 is: 105,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,482.15 : 115,222.77 = 76,757.12 : x
  2. Step 2: Convert to fraction form
    83,482.15/115,222.77 = 76,757.12/x
  3. Step 3: Cross multiply
    83,482.15x = 115,222.77 × 76,757.12
  4. Step 4: Simplify right side
    83,482.15x = 8,844,167,983.62
  5. Step 5: Solve for x
    x = 8,844,167,983.62/83,482.15
  6. Step 6: Final answer
    x = 105,940.83

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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.