Home / 78,363.12-117,564.57-36,273.54

Finding the Fourth Proportional to 78,363.12, 117,564.57 and 36,273.54

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Solution

The fourth proportional to 78,363.12, 117,564.57 and 36,273.54 is: 54,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,363.12 : 117,564.57 = 36,273.54 : x
  2. Step 2: Convert to fraction form
    78,363.12/117,564.57 = 36,273.54/x
  3. Step 3: Cross multiply
    78,363.12x = 117,564.57 × 36,273.54
  4. Step 4: Simplify right side
    78,363.12x = 4,264,483,132.48
  5. Step 5: Solve for x
    x = 4,264,483,132.48/78,363.12
  6. Step 6: Final answer
    x = 54,419.52

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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.