Home / 86,369.29-129,527.78-30,198.93

Finding the Fourth Proportional to 86,369.29, 129,527.78 and 30,198.93

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Solution

The fourth proportional to 86,369.29, 129,527.78 and 30,198.93 is: 45,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,369.29 : 129,527.78 = 30,198.93 : x
  2. Step 2: Convert to fraction form
    86,369.29/129,527.78 = 30,198.93/x
  3. Step 3: Cross multiply
    86,369.29x = 129,527.78 × 30,198.93
  4. Step 4: Simplify right side
    86,369.29x = 3,911,599,562.64
  5. Step 5: Solve for x
    x = 3,911,599,562.64/86,369.29
  6. Step 6: Final answer
    x = 45,289.24

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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.