Home / 312,589.20-468,877.28-75,933.12

Finding the Fourth Proportional to 312,589.20, 468,877.28 and 75,933.12

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Solution

The fourth proportional to 312,589.20, 468,877.28 and 75,933.12 is: 113,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,589.20 : 468,877.28 = 75,933.12 : x
  2. Step 2: Convert to fraction form
    312,589.20/468,877.28 = 75,933.12/x
  3. Step 3: Cross multiply
    312,589.20x = 468,877.28 × 75,933.12
  4. Step 4: Simplify right side
    312,589.20x = 35,603,314,767.51
  5. Step 5: Solve for x
    x = 35,603,314,767.51/312,589.20
  6. Step 6: Final answer
    x = 113,898.10

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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.