Home / 79,945.16-119,976.24-38,421.32

Finding the Fourth Proportional to 79,945.16, 119,976.24 and 38,421.32

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Solution

The fourth proportional to 79,945.16, 119,976.24 and 38,421.32 is: 57,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,945.16 : 119,976.24 = 38,421.32 : x
  2. Step 2: Convert to fraction form
    79,945.16/119,976.24 = 38,421.32/x
  3. Step 3: Cross multiply
    79,945.16x = 119,976.24 × 38,421.32
  4. Step 4: Simplify right side
    79,945.16x = 4,609,645,509.44
  5. Step 5: Solve for x
    x = 4,609,645,509.44/79,945.16
  6. Step 6: Final answer
    x = 57,660.09

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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.