Home / 86,784.04-119,767.14-49,061.80

Finding the Fourth Proportional to 86,784.04, 119,767.14 and 49,061.80

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Solution

The fourth proportional to 86,784.04, 119,767.14 and 49,061.80 is: 67,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,784.04 : 119,767.14 = 49,061.80 : x
  2. Step 2: Convert to fraction form
    86,784.04/119,767.14 = 49,061.80/x
  3. Step 3: Cross multiply
    86,784.04x = 119,767.14 × 49,061.80
  4. Step 4: Simplify right side
    86,784.04x = 5,875,991,469.25
  5. Step 5: Solve for x
    x = 5,875,991,469.25/86,784.04
  6. Step 6: Final answer
    x = 67,708.20

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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.