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Finding the Fourth Proportional to 79,328.70, 118,998.45 and 25,289.10

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Solution

The fourth proportional to 79,328.70, 118,998.45 and 25,289.10 is: 37,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,328.70 : 118,998.45 = 25,289.10 : x
  2. Step 2: Convert to fraction form
    79,328.70/118,998.45 = 25,289.10/x
  3. Step 3: Cross multiply
    79,328.70x = 118,998.45 × 25,289.10
  4. Step 4: Simplify right side
    79,328.70x = 3,009,363,701.90
  5. Step 5: Solve for x
    x = 3,009,363,701.90/79,328.70
  6. Step 6: Final answer
    x = 37,935.37

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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.