Home / 86,369.43-129,261.52-53,110.56

Finding the Fourth Proportional to 86,369.43, 129,261.52 and 53,110.56

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Solution

The fourth proportional to 86,369.43, 129,261.52 and 53,110.56 is: 79,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,369.43 : 129,261.52 = 53,110.56 : x
  2. Step 2: Convert to fraction form
    86,369.43/129,261.52 = 53,110.56/x
  3. Step 3: Cross multiply
    86,369.43x = 129,261.52 × 53,110.56
  4. Step 4: Simplify right side
    86,369.43x = 6,865,151,713.65
  5. Step 5: Solve for x
    x = 6,865,151,713.65/86,369.43
  6. Step 6: Final answer
    x = 79,485.90

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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.