Home / 86,623.20-129,923.85-27,459.45

Finding the Fourth Proportional to 86,623.20, 129,923.85 and 27,459.45

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Solution

The fourth proportional to 86,623.20, 129,923.85 and 27,459.45 is: 41,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,623.20 : 129,923.85 = 27,459.45 : x
  2. Step 2: Convert to fraction form
    86,623.20/129,923.85 = 27,459.45/x
  3. Step 3: Cross multiply
    86,623.20x = 129,923.85 × 27,459.45
  4. Step 4: Simplify right side
    86,623.20x = 3,567,637,462.88
  5. Step 5: Solve for x
    x = 3,567,637,462.88/86,623.20
  6. Step 6: Final answer
    x = 41,185.70

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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.