Home / 75,824.64-113,702.40-38,914.56

Finding the Fourth Proportional to 75,824.64, 113,702.40 and 38,914.56

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Solution

The fourth proportional to 75,824.64, 113,702.40 and 38,914.56 is: 58,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,824.64 : 113,702.40 = 38,914.56 : x
  2. Step 2: Convert to fraction form
    75,824.64/113,702.40 = 38,914.56/x
  3. Step 3: Cross multiply
    75,824.64x = 113,702.40 × 38,914.56
  4. Step 4: Simplify right side
    75,824.64x = 4,424,678,866.94
  5. Step 5: Solve for x
    x = 4,424,678,866.94/75,824.64
  6. Step 6: Final answer
    x = 58,354.10

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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.