Home / 86,791.50-119,783.61-49,065.75

Finding the Fourth Proportional to 86,791.50, 119,783.61 and 49,065.75

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Solution

The fourth proportional to 86,791.50, 119,783.61 and 49,065.75 is: 67,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,791.50 : 119,783.61 = 49,065.75 : x
  2. Step 2: Convert to fraction form
    86,791.50/119,783.61 = 49,065.75/x
  3. Step 3: Cross multiply
    86,791.50x = 119,783.61 × 49,065.75
  4. Step 4: Simplify right side
    86,791.50x = 5,877,272,662.36
  5. Step 5: Solve for x
    x = 5,877,272,662.36/86,791.50
  6. Step 6: Final answer
    x = 67,717.15

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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.