Home / 86,633.24-129,991.17-47,189.48

Finding the Fourth Proportional to 86,633.24, 129,991.17 and 47,189.48

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Solution

The fourth proportional to 86,633.24, 129,991.17 and 47,189.48 is: 70,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,633.24 : 129,991.17 = 47,189.48 : x
  2. Step 2: Convert to fraction form
    86,633.24/129,991.17 = 47,189.48/x
  3. Step 3: Cross multiply
    86,633.24x = 129,991.17 × 47,189.48
  4. Step 4: Simplify right side
    86,633.24x = 6,134,215,716.89
  5. Step 5: Solve for x
    x = 6,134,215,716.89/86,633.24
  6. Step 6: Final answer
    x = 70,806.72

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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.