Home / 78,732.49-118,098.20-19,568.07

Finding the Fourth Proportional to 78,732.49, 118,098.20 and 19,568.07

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Solution

The fourth proportional to 78,732.49, 118,098.20 and 19,568.07 is: 29,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732.49 : 118,098.20 = 19,568.07 : x
  2. Step 2: Convert to fraction form
    78,732.49/118,098.20 = 19,568.07/x
  3. Step 3: Cross multiply
    78,732.49x = 118,098.20 × 19,568.07
  4. Step 4: Simplify right side
    78,732.49x = 2,310,953,844.47
  5. Step 5: Solve for x
    x = 2,310,953,844.47/78,732.49
  6. Step 6: Final answer
    x = 29,351.97

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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.