Home / 86,126.04-129,013.62-43,882.08

Finding the Fourth Proportional to 86,126.04, 129,013.62 and 43,882.08

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Solution

The fourth proportional to 86,126.04, 129,013.62 and 43,882.08 is: 65,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,126.04 : 129,013.62 = 43,882.08 : x
  2. Step 2: Convert to fraction form
    86,126.04/129,013.62 = 43,882.08/x
  3. Step 3: Cross multiply
    86,126.04x = 129,013.62 × 43,882.08
  4. Step 4: Simplify right side
    86,126.04x = 5,661,385,993.93
  5. Step 5: Solve for x
    x = 5,661,385,993.93/86,126.04
  6. Step 6: Final answer
    x = 65,733.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.