Home / 77,217.09-115,746.33-43,865.94

Finding the Fourth Proportional to 77,217.09, 115,746.33 and 43,865.94

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Solution

The fourth proportional to 77,217.09, 115,746.33 and 43,865.94 is: 65,753.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,217.09 : 115,746.33 = 43,865.94 : x
  2. Step 2: Convert to fraction form
    77,217.09/115,746.33 = 43,865.94/x
  3. Step 3: Cross multiply
    77,217.09x = 115,746.33 × 43,865.94
  4. Step 4: Simplify right side
    77,217.09x = 5,077,321,567.00
  5. Step 5: Solve for x
    x = 5,077,321,567.00/77,217.09
  6. Step 6: Final answer
    x = 65,753.86

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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.