Home / 72,560.05-108,882.07-30,436.36

Finding the Fourth Proportional to 72,560.05, 108,882.07 and 30,436.36

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Solution

The fourth proportional to 72,560.05, 108,882.07 and 30,436.36 is: 45,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,560.05 : 108,882.07 = 30,436.36 : x
  2. Step 2: Convert to fraction form
    72,560.05/108,882.07 = 30,436.36/x
  3. Step 3: Cross multiply
    72,560.05x = 108,882.07 × 30,436.36
  4. Step 4: Simplify right side
    72,560.05x = 3,313,973,702.97
  5. Step 5: Solve for x
    x = 3,313,973,702.97/72,560.05
  6. Step 6: Final answer
    x = 45,672.15

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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.