Home / 65,879.09-90,913.49-37,584.78

Finding the Fourth Proportional to 65,879.09, 90,913.49 and 37,584.78

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Solution

The fourth proportional to 65,879.09, 90,913.49 and 37,584.78 is: 51,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,879.09 : 90,913.49 = 37,584.78 : x
  2. Step 2: Convert to fraction form
    65,879.09/90,913.49 = 37,584.78/x
  3. Step 3: Cross multiply
    65,879.09x = 90,913.49 × 37,584.78
  4. Step 4: Simplify right side
    65,879.09x = 3,416,963,332.76
  5. Step 5: Solve for x
    x = 3,416,963,332.76/65,879.09
  6. Step 6: Final answer
    x = 51,867.19

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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.