Home / 86,939.84-119,934.59-56,711.44

Finding the Fourth Proportional to 86,939.84, 119,934.59 and 56,711.44

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Solution

The fourth proportional to 86,939.84, 119,934.59 and 56,711.44 is: 78,234.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939.84 : 119,934.59 = 56,711.44 : x
  2. Step 2: Convert to fraction form
    86,939.84/119,934.59 = 56,711.44/x
  3. Step 3: Cross multiply
    86,939.84x = 119,934.59 × 56,711.44
  4. Step 4: Simplify right side
    86,939.84x = 6,801,663,304.71
  5. Step 5: Solve for x
    x = 6,801,663,304.71/86,939.84
  6. Step 6: Final answer
    x = 78,234.14

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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.