Home / 79,265.76-109,386.04-43,455.12

Finding the Fourth Proportional to 79,265.76, 109,386.04 and 43,455.12

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Solution

The fourth proportional to 79,265.76, 109,386.04 and 43,455.12 is: 59,967.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,265.76 : 109,386.04 = 43,455.12 : x
  2. Step 2: Convert to fraction form
    79,265.76/109,386.04 = 43,455.12/x
  3. Step 3: Cross multiply
    79,265.76x = 109,386.04 × 43,455.12
  4. Step 4: Simplify right side
    79,265.76x = 4,753,383,494.52
  5. Step 5: Solve for x
    x = 4,753,383,494.52/79,265.76
  6. Step 6: Final answer
    x = 59,967.68

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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.