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Finding the Fourth Proportional to 78,552.28, 118,025.25 and 73,828.36

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Solution

The fourth proportional to 78,552.28, 118,025.25 and 73,828.36 is: 110,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,552.28 : 118,025.25 = 73,828.36 : x
  2. Step 2: Convert to fraction form
    78,552.28/118,025.25 = 73,828.36/x
  3. Step 3: Cross multiply
    78,552.28x = 118,025.25 × 73,828.36
  4. Step 4: Simplify right side
    78,552.28x = 8,713,610,646.09
  5. Step 5: Solve for x
    x = 8,713,610,646.09/78,552.28
  6. Step 6: Final answer
    x = 110,927.53

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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.