Home / 64,128.51-96,194.42-30,386.61

Finding the Fourth Proportional to 64,128.51, 96,194.42 and 30,386.61

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Solution

The fourth proportional to 64,128.51, 96,194.42 and 30,386.61 is: 45,580.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,128.51 : 96,194.42 = 30,386.61 : x
  2. Step 2: Convert to fraction form
    64,128.51/96,194.42 = 30,386.61/x
  3. Step 3: Cross multiply
    64,128.51x = 96,194.42 × 30,386.61
  4. Step 4: Simplify right side
    64,128.51x = 2,923,022,286.73
  5. Step 5: Solve for x
    x = 2,923,022,286.73/64,128.51
  6. Step 6: Final answer
    x = 45,580.70

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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.