Home / 72,394.56-108,577.26-19,809.36

Finding the Fourth Proportional to 72,394.56, 108,577.26 and 19,809.36

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Solution

The fourth proportional to 72,394.56, 108,577.26 and 19,809.36 is: 29,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,394.56 : 108,577.26 = 19,809.36 : x
  2. Step 2: Convert to fraction form
    72,394.56/108,577.26 = 19,809.36/x
  3. Step 3: Cross multiply
    72,394.56x = 108,577.26 × 19,809.36
  4. Step 4: Simplify right side
    72,394.56x = 2,150,846,031.15
  5. Step 5: Solve for x
    x = 2,150,846,031.15/72,394.56
  6. Step 6: Final answer
    x = 29,710.05

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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.