Home / 65,879.48-90,913.57-35,664.79

Finding the Fourth Proportional to 65,879.48, 90,913.57 and 35,664.79

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Solution

The fourth proportional to 65,879.48, 90,913.57 and 35,664.79 is: 49,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,879.48 : 90,913.57 = 35,664.79 : x
  2. Step 2: Convert to fraction form
    65,879.48/90,913.57 = 35,664.79/x
  3. Step 3: Cross multiply
    65,879.48x = 90,913.57 × 35,664.79
  4. Step 4: Simplify right side
    65,879.48x = 3,242,413,382.20
  5. Step 5: Solve for x
    x = 3,242,413,382.20/65,879.48
  6. Step 6: Final answer
    x = 49,217.35

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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.