Home / 78,119.48-117,196.62-43,041.08

Finding the Fourth Proportional to 78,119.48, 117,196.62 and 43,041.08

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Solution

The fourth proportional to 78,119.48, 117,196.62 and 43,041.08 is: 64,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,119.48 : 117,196.62 = 43,041.08 : x
  2. Step 2: Convert to fraction form
    78,119.48/117,196.62 = 43,041.08/x
  3. Step 3: Cross multiply
    78,119.48x = 117,196.62 × 43,041.08
  4. Step 4: Simplify right side
    78,119.48x = 5,044,269,097.15
  5. Step 5: Solve for x
    x = 5,044,269,097.15/78,119.48
  6. Step 6: Final answer
    x = 64,571.21

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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.