Home / 86,780.15-119,755.01-49,054.40

Finding the Fourth Proportional to 86,780.15, 119,755.01 and 49,054.40

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Solution

The fourth proportional to 86,780.15, 119,755.01 and 49,054.40 is: 67,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,780.15 : 119,755.01 = 49,054.40 : x
  2. Step 2: Convert to fraction form
    86,780.15/119,755.01 = 49,054.40/x
  3. Step 3: Cross multiply
    86,780.15x = 119,755.01 × 49,054.40
  4. Step 4: Simplify right side
    86,780.15x = 5,874,510,162.54
  5. Step 5: Solve for x
    x = 5,874,510,162.54/86,780.15
  6. Step 6: Final answer
    x = 67,694.17

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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.