Home / 54,580.62-75,315.15-30,715.50

Finding the Fourth Proportional to 54,580.62, 75,315.15 and 30,715.50

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Solution

The fourth proportional to 54,580.62, 75,315.15 and 30,715.50 is: 42,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,580.62 : 75,315.15 = 30,715.50 : x
  2. Step 2: Convert to fraction form
    54,580.62/75,315.15 = 30,715.50/x
  3. Step 3: Cross multiply
    54,580.62x = 75,315.15 × 30,715.50
  4. Step 4: Simplify right side
    54,580.62x = 2,313,342,489.83
  5. Step 5: Solve for x
    x = 2,313,342,489.83/54,580.62
  6. Step 6: Final answer
    x = 42,383.95

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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.