Home / 47,078.38-70,617.68-11,539.86

Finding the Fourth Proportional to 47,078.38, 70,617.68 and 11,539.86

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Solution

The fourth proportional to 47,078.38, 70,617.68 and 11,539.86 is: 17,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,078.38 : 70,617.68 = 11,539.86 : x
  2. Step 2: Convert to fraction form
    47,078.38/70,617.68 = 11,539.86/x
  3. Step 3: Cross multiply
    47,078.38x = 70,617.68 × 11,539.86
  4. Step 4: Simplify right side
    47,078.38x = 814,917,904.76
  5. Step 5: Solve for x
    x = 814,917,904.76/47,078.38
  6. Step 6: Final answer
    x = 17,309.81

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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.