Home / 79,732.30-119,595.45-19,760.95

Finding the Fourth Proportional to 79,732.30, 119,595.45 and 19,760.95

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Solution

The fourth proportional to 79,732.30, 119,595.45 and 19,760.95 is: 29,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,732.30 : 119,595.45 = 19,760.95 : x
  2. Step 2: Convert to fraction form
    79,732.30/119,595.45 = 19,760.95/x
  3. Step 3: Cross multiply
    79,732.30x = 119,595.45 × 19,760.95
  4. Step 4: Simplify right side
    79,732.30x = 2,363,319,707.68
  5. Step 5: Solve for x
    x = 2,363,319,707.68/79,732.30
  6. Step 6: Final answer
    x = 29,640.68

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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.