Home / 86,436.93-119,238.50-57,747.42

Finding the Fourth Proportional to 86,436.93, 119,238.50 and 57,747.42

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Solution

The fourth proportional to 86,436.93, 119,238.50 and 57,747.42 is: 79,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,436.93 : 119,238.50 = 57,747.42 : x
  2. Step 2: Convert to fraction form
    86,436.93/119,238.50 = 57,747.42/x
  3. Step 3: Cross multiply
    86,436.93x = 119,238.50 × 57,747.42
  4. Step 4: Simplify right side
    86,436.93x = 6,885,715,559.21
  5. Step 5: Solve for x
    x = 6,885,715,559.21/86,436.93
  6. Step 6: Final answer
    x = 79,661.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.